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|Centuries:||19th century – 20th century – 21st century|
|Decades:||1890s 1900s 1910s – 1920s – 1930s 1940s 1950s|
|Years:||1917 1918 1919 – 1920 – 1921 1922 1923|
|1920 by topic:|
|Birth and death categories|
|Establishments and disestablishments categories|
|Works and introductions categories|
|Ab urbe condita||2673|
|British Regnal year||9 Geo. 5 – 10 Geo. 5|
|Chinese calendar|| 己未年十一月十一日
— to —庚申年十一月廿二日
|- Vikram Samvat||1976–1977|
|- Shaka Samvat||1842–1843|
|- Kali Yuga||5021–5022|
|- Ǹrí Ìgbò||920–921|
|Japanese calendar|| Taishō 9
|Julian calendar||Gregorian minus 13 days|
|Minguo calendar||ROC 9
|Thai solar calendar||2463|
Year 1920 (MCMXX) was a leap year starting on Thursday (link will display the full calendar) of the Gregorian calendar and a leap year starting on Wednesday of the 13-day slower Julian calendar.
- 4,025 suspected communists and anarchists arrested and held without trial in the United States following raids in several cities.
- January 1
- Babe Ruth is traded by the Red Sox for $125,000, the largest sum ever paid for a player at that time.
- Bolsheviks increase troops from four divisions to twenty along the Polish border
- January 7
- The forces of Russian White Admiral Alexander Kolchak surrender in Krasnoyarsk. The Great Siberian Ice March ensues.
- The New York State Assembly refuses to seat five duly elected Socialist assemblymen.
- January 9 – Thousands of onlookers watch as "The Human Fly" George Polley climbs the Woolworth Building in New York City. He reaches the 30th floor before being arrested.
- January 10 – League of Nations Covenant enters into force.
- January 11 – The Azerbaijan Democratic Republic is recognised de facto by European powers in Versailles.
- January 13 – The New York Times ridicules the American rocket scientist Robert H. Goddard. The newspaper has to recant publicly on July 17, 1969 when the Apollo crew is on its mission to the Moon.
- January 16
- Prohibition in the United States begins with the Eighteenth Amendment to the Constitution coming into effect.
- The Allies of World War I demand that the Netherlands extradite the German Kaiser Wilhelm II, who fled there in 1918.
- Zeta Phi Beta Sorority, Incorporated, is founded on the campus of Howard University in Washington, D.C.
- January 19 – The United States Senate votes against joining the League of Nations.
- January 22 – The Australian Country Party is officially formed, led by Nelson Pollard.
- January 23 – The Netherlands refuses to extradite the German Kaiser.
- January 28 – El Tercio de Extranjeros, the "Regiment of Foreigners", later the Spanish Legion, is established by decree of King Alfonso XIII of Spain.
- January 30 – The oldest surviving pro wrestling match on film takes place, with Joe Stecher defeating Earl Caddock.
- February 2
- Estonian War of Independence: The Tartu Peace Treaty is signed, ending the war and recognizing Estonian independence.
- France occupies Memel.
- Sayyid Muhammad, Khan of Khiva abdicates.
- February 7 – Admiral Kolchak and Viktor Pepelyayev are executed by firing squad near Irkutsk.
- February 9 – The League of Nations gives Spitzbergen to Norway.
- February 10 – Józef Haller de Hallenburg performs the symbolic wedding of Poland to the sea, celebrating the restitution of Polish access to the open sea.
- February 12– 24 – Conference of London: Leaders of the United Kingdom, France and Italy meet to discuss the partitioning of the Ottoman Empire.
- February 14 – The League of Women Voters is founded in Chicago.
- February 17 – A woman named Anna Anderson tries to commit suicide in Berlin and is taken to a mental hospital, where she claims she is Grand Duchess Anastasia of Russia.
- February 19 – The United States Senate refuses to sign the Treaty of Versailles.
- February 20 – 1920 Gori earthquake: An earthquake hits Gori in the Democratic Republic of Georgia, killing 114.
- February 21 – The island province of Marinduque in the Philippines archipelago is founded.
- February 22 – In Emeryville, California, the first dog racing track to employ an imitation rabbit opens.
- February 24 – Adolf Hitler presents his National Socialist program in Munich.
- March 1
- Hungarian Admiral and statesman Miklós Horthy becomes the Regent of Hungary.
- The United States Railroad Administration returns control of American railroads to its constituent railroad companies.
- March 7 – Syrian National Congress proclaims Syria independent with Faisal I of Iraq as king.
- March 10
- The world's first peaceful establishment of a social democratic government takes place in Sweden. Hjalmar Branting takes over when Nils Edén resigns.
- The Baylor Business Men's Club changes its name to the Baylor University Chamber of Commerce.
- March 13– 17 – Wolfgang Kapp and Walther von Lüttwitz's ' Kapp Putsch', an attempted coup in Germany, briefly ousts the Weimar Republic government from Berlin but fails due to public resistance and a general strike.
- March 15 – The Ruhr Red Army, a communist army 60,000 men strong, is formed in Germany.
- March 15– 16 – Military occupation of Constantinople by British Empire forces acting for the Allied Powers against the Turkish National Movement. Retrospectively, the Grand National Assembly of Turkey regards this as the dissolution of the Ottoman regime in Istanbul.
- March 18 – Greece begins using the Gregorian calendar.
- March 19 – The United States Congress refuses to ratify the Treaty of Versailles.
- March 23 – Admiral Horthy declares that Hungary is a monarchy without anyone on the throne.
- March 25 – Irish War of Independence: British recruits to the Royal Irish Constabulary begin to arrive in Ireland. They become known from their improvised uniforms as the " Black and Tans".
- March 26 – The German government asks France for permission to use its own troops against the rebellious Ruhr Red Army in the French-occupied area.
- March 28 – The 1920 Palm Sunday tornado outbreak hits the Great Lakes region and Deep South of the United States.
- March 29 – Sir William Robertson is promoted to Field Marshal, the first man to rise from private (enlisted 1877) to the highest rank in the British Army.
- April 2 – The German army marches to the Ruhr to fight the Ruhr Red Army.
- April 4 – 1920 Palestine riots: Violence erupts between Arab and Jewish residents in Jerusalem; 9 killed, 216 injured.
- April 6 – The short-lived Far Eastern Republic is declared in eastern Siberia.
- April 11 – Mexican Revolution: Álvaro Obregón flees from Mexico City during a trial intended to ruin his reputation; he flees to Guerrero where he joins Fortunato Maycotte.
- April 19– 26 – San Remo conference: Representatives of Italy, France, the United Kingdom and Japan meet to determine the League of Nations mandates for administration of territories following partitioning of the Ottoman Empire.
- April 19 – Germany and Bolshevist Russia agree to the exchange of prisoners of war.
- April 20
- April 23 – The Grand National Assembly of Turkey is founded by Mustafa Kemal Ataturk in Ankara. It denounces the government of Sultan Mehmed VI and announces a temporary constitution.
- April 24 – Polish–Soviet War: Polish and anti-Soviet Ukrainian troops attack the Red Army in Soviet Ukraine.
- April 26 – The Khorezm People's Soviet Republic is officially created by Bolshevist Russia as the successor to the Khanate of Khiva.
- April 28 – The Azerbaijan Soviet Socialist Republic is officially created.
- May 2 – The first game of Negro National League baseball is played in Indianapolis, Indiana.
- May 3 – A Bolshevik coup fails in the Democratic Republic of Georgia .
- May 7
- Polish–Soviet War: Polish troops occupy Kiev. The government of the Ukrainian People's Republic returns to the city.
- Mexican Revolution: Venustiano Carranza leaves Mexico City in a large train.
- Treaty of Moscow (1920): Soviet Russia recognizes independence of the Democratic Republic of Georgia only to invade the country six months later.
- May 19 – Mexican Revolution: Álvaro Obregón's troops enter Mexico City.
- May 15 – Russian Revolution: Russian White soldier Maria Bochkareva is executed in Soviet Russia.
- May 16
- Canonization of Joan of Arc. Over 30,000 people attend the ceremony in Rome, including 140 descendants of Joan of Arc's family. Pope Benedict XV presides over the rite, for which the interior of St. Peter's Basilica in Rome is richly decorated.
- A referendum in Switzerland is favorable to joining the League of Nations.
- May 17
- May 20 – Mexican Revolution: Venustiano Carranza arrives in San Antonio Tlaxcalantongo. Troops of Rodolfo Herrero attack him at night and shoot him.
- May 24 – Venustiano Carranza is buried in Mexico City; all of his mourning allies are arrested. Adolfo de la Huerta is elected provisional president.
- May 26 – Ganja Revolt: Anti-Soviet opposition in the Azerbaijan SSR launches an abortive revolt in Ganja.
- May 27 – Tomáš Garrigue Masaryk becomes president of Czechoslovakia.
- May 29 – Great Floods at Louth, Lincolnshire in England kill 23.
- June 4 – Treaty of Trianon: Peace is restored between the Allied Powers and Hungary. Hungary loses 72% of its territory.
- June 5 – Bolshevik Cavalry break through Polish and Ukrainian lines south of Kiev, precipitating eventual withdrawal.
- June 12 – Polish–Soviet War: The Red Army retakes Kiev.
- June 13
- Essad Pasha Toptani, nominal ruler of Albania, is assassinated by Avni Rustemi in Paris.
- The United States Post Office Department rules that children may not be sent via parcel post.
- June 15 – A new border treaty between Germany and Denmark gives northern Schleswig to Denmark.
- June 22 – Greece attacks Turkish troops.
- July 1 – Germany declares its neutrality in the war between Poland and Soviet Russia.
- July 2 – Polish–Soviet War: Red Army continues offensive into Poland.
- July 7 – Arthur Meighen becomes Canada's ninth prime minister.
- July 12 – Bolshevist Russia recognizes independent Lithuania.
- July 13 – London County Council bars foreigners from council jobs.
- July 19 – August 7 – The Second Congress of the Communist International takes place in Saint Petersburg and Moscow. The notorious Twenty-one Conditions are adopted.
- July 20 – The United Kingdom cedes its brief control of the key Black Sea port of Batum to the Democratic Republic of Georgia.
- July 22 – Polish–Soviet War: Poland sues for peace with Bolshevist Russia (refused).
- July 23 – Battle of Maysalun: The French defeat the Syrian army.
- July 24 – French troops occupy Damascus and depose Faisal I of Syria as king.
- July 26 – Mexican Revolution: Pancho Villa takes over Sabina and contacts de la Huerta to offer his conditional surrender. He signs his surrender on July 28.
- July 29 – The United States Bureau of Reclamation begins construction of the Link River Dam as part of the Klamath Reclamation Project.
- July 30– August 8 – 1st World Scout Jamboree held at Olympia, London.
- July 31
- August 3 – Irish War of Independence: Catholic riots in Belfast in protest at the continuing British Army presence.
- August 10 – Ottoman Sultan Mehmed VI's representatives sign the Treaty of Sèvres with the Allied Powers, confirming arrangements for partitioning of the Ottoman Empire.
- August 11 – Bolshevik Russia recognizes independent Latvia.
- August 13– 25 – Polish–Soviet War: The Red Army is defeated in the Battle of Warsaw.
- August 13 – Irish War of Independence: The Restoration of Order in Ireland Act, passed by the Parliament of the United Kingdom, receives Royal Assent, providing for Irish Republican Army activists to be tried by court-martial rather than by jury in criminal courts.
- August 19– 25 – Second Silesian Uprising: The Poles in Upper Silesia rise up against the Germans.
- August 20 – The first commercial radio station in the United States, 8MK ( WWJ), begins operations in Detroit, Michigan. It is owned by the Detroit News, the first U.S. radio station owned by a newspaper.
- August 26 – The Nineteenth Amendment to the United States Constitution is passed, guaranteeing women's suffrage.
- September 5 – Presidential elections begin in Mexico.
- September 8 – Gabriele d'Annunzio proclaims the Italian Regency of Carnaro in the city of Fiume.
- September 16 – The Wall Street bombing: A bomb in a horse wagon explodes in front of the J. P. Morgan building in New York City, killing 38 and injuring 400.
- September 17 – The National Football League is established as the American Professional Football Association.
- September 20 – The first soldier joins El Tercio de Extranjeros, the "Regiment of Foreigners", later the Spanish Legion, established on January 28, in Spain; today is celebrated as the unit's anniversary. Under the command of José Millán Astray and Francisco Franco, its first duties are against Rif rebels in the Spanish Protectorate in Morocco.
- September 21 – Communist Party of Uruguay is founded.
- September 22 – The London Metropolitan Police forms the Flying Squad, a motorised mobile detective patrol unit.
- September 27 – Polish–Soviet War: Bolshevist Russia sues for peace with Poland.
- September 29
- October 9 – Polish troops take Vilnius.
- October 10 – Carinthian Plebiscite: A large part of Carinthia Province votes to become part of Austria rather than Yugoslavia.
- October 14 – A peace treaty between the Soviet and the Finnish governments is concluded at Tartu.
- October 16 – Polish–Soviet War: After the Polish army captures Tarnopol, Dubno, Minsk, and Dryssa, the ceasefire is enforced.
- October 18 – Thousands of unemployed demonstrate in London; 50 are injured.
- October 26 – Álvaro Obregón is announced the elected president of Mexico.
- October 27 – The League of Nations moves its headquarters to Geneva, Switzerland.
- November 2
- United States presidential election, 1920: Republican Warren G. Harding defeats Democrat James M. Cox and Socialist Eugene V. Debs, in the first national U.S. election in which women have the right to vote.
- In the United States, KDKA AM of Pittsburgh, Pennsylvania (owned by Westinghouse) starts broadcasting as a commercial radio station. The first broadcast is the results of the presidential election.
- November 11 – The Unknown Warrior is buried in Westminster Abbey.
- November 14 – The Edmonton Symphony Orchestra holds its first concert.
- November 15 – In Geneva, the first assembly of the League of Nations is held.
- November 16 – Queensland and Northern Territory Aviation Services ( Qantas) is founded by Hudson Fysh and Paul McGinniss.
- November 17 – The council of the League of Nations accepts the constitution for the Free City of Danzig.
- November 21 – Irish War of Independence: Bloody Sunday: The Irish Republican Army, on the instructions of Michael Collins, shoot dead the "Cairo gang", fourteen British undercover agents in Dublin, most in their homes. Later that day in retaliation the Auxiliary Division of the Royal Irish Constabulary open fire on a crowd at a Gaelic Athletic Association Football match in Croke Park, killing thirteen spectators and one player and wounding 60. Three men are shot this night in Dublin Castle "while trying to escape".
- November 28 – Irish War of Independence: Kilmichael Ambush: The flying column of the 3rd Cork Brigade of the Irish Republican Army, led by Tom Barry, ambushes two lorries carrying men of the Auxiliary Division of the Royal Irish Constabulary at Kilmichael, County Cork, killing seventeen (with three of its men also dying), which leads to official reprisals.
- December 5 – A referendum in Greece is favorable to the reinstatement of the monarchy.
- December 10 – Irish War of Independence: Martial law is declared in Counties Cork, Kerry, Limerick and Tipperary.
- December 11 – The Burning of Cork in Ireland: British forces set fire to some 5 acres (20,000 m2) of the centre of Cork (city), including the City Hall, in reprisal attacks after a British auxiliary is killed in a guerilla ambush.
- December 16
- December 15– 22 – The Brussels Conference establishes a timetable for German war reparations intended to extend for over 42 years.
- December 22 – The 8th Congress of Soviets of the Russian SFSR adopts the GOELRO plan, the major plan of the economical development of the country.
- December 23
- United Kingdom and France ratify the border between French-held Syria and British-held Palestine.
- Government of Ireland Act 1920, passed by the Parliament of the United Kingdom, receives Royal Assent from George V providing for the partition of Ireland into Northern Ireland and Southern Ireland with separate parliaments, granting a measure of home rule.
- December 25 – The Rosicrucian Fellowship's spiritual healing temple The Ecclesia is dedicated at Mount Ecclesia, Oceanside, California.
- Hydrocodone, a narcotic analgesic closely related to codeine is first synthesized in Germany by Carl Mannich and Helene Löwenheim.
- January 1
- January 2
- January 3 – Renato Carosone, Italian musician and singer (d. 2001)
- January 5 – Arturo Benedetti Michelangeli, Italian pianist (d. 1995)
- January 6
- January 9
- January 12 – Bill Reid, Canadian artist (d. 1998)
- January 15 – John O'Connor, American Catholic cardinal (d. 2000)
- January 16 – Elliott Reid, American actor
- January 19 – Javier Pérez de Cuéllar, Peruvian Secretary-General of the United Nations
- January 20
- January 23 – Gottfried Böhm, German architect
- January 24 – Jerry Maren, American actor
- January 27
- January 30
- Michael Anderson, English film director
- Delbert Mann, American television and film director (d. 2007)
- February 2 – Heikki Suolahti, Finnish composer (d. 1936)
- February 3 – Henry Heimlich, American physician and medical researcher
- February 7 – An Wang, Chinese-born computer pioneer (d. 1990)
- February 11
- February 12 – William Roscoe Estep, American Baptist historian (d. 2000)
- February 13 – Seneka Bibile, Sri Lankan pharmacologist (d. 1977)
- February 17 – Ivo Caprino, Norwegian film director (d. 2001)
- February 18
- February 22 – Burt L. Talcott, American politician
- February 26
- February 29 – Howard Nemerov, American poet (d. 1991)
- March 3
- March 4
- March 5
- Rachel Gurney, British actress (d. 2001)
- Del Latta, American politician
- March 6 – Lewis Gilbert, British film director, producer and screenwriter
- March 10
- March 11 – Nicolaas Bloembergen, Dutch physicist, Nobel Prize laureate
- March 14 – Hank Ketcham, American cartoonist (d. 2001)
- March 15
- March 17 – Sheikh Mujibur Rahman, Founder of Bangladesh, first President & Prime Minister of Bangladesh (d. 1975)
- March 16 – Leo McKern, Australian actor (d. 2002)
- March 19
- March 20
- March 22 – Werner Klemperer, German actor (d. 2000)
- March 23 – Tetsuharu Kawakami, Japanese baseball player and coach
- March 24 – Corbin Harney, elder and spiritual leader of the Newe (Western Shoshone) people (d. 2007)
- March 25
- March 27 – Robin Jacques, English illustrator (d. 1995)
- March 31
- Deborah Cavendish, Duchess of Devonshire
- Marga Minco, Dutch journalist and writer
- April 1 – Toshiro Mifune, Japanese actor (d. 1997)
- April 2 – Jack Webb, American actor, director, and producer (d. 1982)
- April 4 – Éric Rohmer, French film director (d. 2010)
- April 5
- April 6 – Edmond H. Fischer, Swiss American biochemist, recipient of the Nobel Prize in Physiology or Medicine
- April 7 – Ravi Shankar, Indian sitar player (d. 2012)
- April 8 – Carmen McRae, American jazz singer (d. 1994)
- April 11 – Peter O'Donnell, British author and writer of comic strips (d. 2010)
- April 12 – Buck Young, American actor (d. 2000)
- April 13
- April 15
- Thomas Szasz, Hungarian-born psychiatrist and writer (d. 2012)
- Richard von Weizsäcker, German politician, President of Germany (1984–1994)
- April 19 – Gene Leis, American jazz guitarist and eductor (d. 1993)
- April 20 – John Paul Stevens, American Supreme Court justice
- April 21 – Edmund Adamkiewicz, German footballer (d. 1991)
- April 27 – Guido Cantelli, Italian conductor (d. 1956)
- April 29 – Harold Shapero, American composer
- May 2
- May 6 – Ratu Sir Kamisese Mara, first Prime Minister of Fiji and President of Fiji (d. 2004)
- May 8 – Saul Bass, American graphic designer (d. 1996)
- May 9
- Richard Adams, English author
- Mitsuko Mori, Japanese actress (d. 2012)
- May 11 – Denver Pyle, American actor (d. 1997)
- May 13 – Gareth Morris, British flautist (d. 2007)
- May 18
- May 20 – Domenico Leccisi, Italian politician (d. 2008)
- May 23
- May 26 – Peggy Lee, American singer (d. 2002)
- May 28 – Gene Levitt, American television writer, producer, and director (d. 1999)
- May 29 – John Harsanyi, Hungarian-born economist, Nobel Prize laureate (d. 2000)
- May 30
- Franklin Schaffner, American film and television director (d. 1989)
- Shotaro Yasuoka, Japanese writer (d. 2013)
- June 2 – Tex Schramm, American football executive (d. 2003)
- June 11 – King Mahendra,king of Nepal (d. 1972)
- June 12
- June 16
- Eva Estrada-Kalaw, Filipino politician,
- José López Portillo, President of Mexico (d. 2004)
- June 17
- Jacob H. Gilbert, American politician (d. 1981)
- François Jacob, French biologist, recipient of the Nobel Prize in Physiology or Medicine
- June 25 – Ozan Marsh, American pianist (d. 1992)
- June 29 – Ray Harryhausen, American animator
- July 4
- Anthony Barber, British Conservative politician
- Leona Helmsley, hotel operator, real estate investor (d. 2007)
- July 10 – Owen Chamberlain, American physicist, Nobel Prize laureate (d. 2006)
- July 11 – Yul Brynner, Russian-born actor (d. 1985)
- July 13
- July 15 – Theresa Kobuszewski, American professional baseball pllayer and World War II veteran (d. 2005)
- July 17
- July 18 – Dolph Sweet, American actor (d. 1985)
- July 21
- July 24 – Bella Abzug, American feminist politician (d. 1998)
- July 25 – Rosalind Franklin, British crystallographer (d. 1958)
- August 1
- Sammy Lee, Korean-American diver
- Thomas McGuire, American World War II fighter ace (d. 1945)
- August 2 – Reginald Hugh Hickling, British lawyer, colonial civil servant, law academic and author (d. 2007)
- August 4 – Helen Thomas, American author and former news service reporter, member of the White House press corps and columnist
- August 8
- August 9 – Milton G. Henschel, a member of the Governing Body of Jehovah's Witnesses and 5th President of the Watch Tower Bible and Tract Society (d. 2003)
- August 16 – Charles Bukowski, American writer (d. 1994)
- August 17 – Maureen O'Hara, Irish actress
- August 18
- August 20
- Ann Harnett, American female baseball player
- Red Holzman, American basketball coach (d. 1998)
- August 21 – Christopher Robin Milne, English author and bookseller (d. 1996)
- August 22 – Ray Bradbury, American science fiction writer (d. 2012)
- August 26
- Mauri Favén, Finnish painter (d. 2006)
- Prem Tinsulanonda, Thai prime minister
- August 29 – Charlie Parker, African-American saxophonist and composer (d. 1955)
- September 3 – Les Medley, English footballer (d. 2001)
- September 4 – Catherine Bennett, Canadian female professional baseball player
- September 10 – Fabio Taglioni, Italian motorcycle engineer (d. 2001)
- September 14
- September 18 – Jack Warden, American actor (d. 2006)
- September 22 – William H. Riker, American political scientist (d. 1993)
- September 23 –
- Mickey Rooney, American actor, dancer and entertainer
- Alexander Arutiunian, Armenian composer (d. 2012)
- September 24 – Dick Bong, American fighter ace (d. 1945)
- September 27 – Jayne Meadows, American actress
- September 29 – Peter D. Mitchell, English chemist, Nobel Prize laureate (d. 1992)
- October 1
- October 6
- October 8 – Frank Herbert, American author (d. 1986)
- October 9 – Jens Bjørneboe, Norwegian author (d. 1976)
- October 13 – Laraine Day, American actress (d. 2007)
- October 15 – Mario Puzo, American author (d. 1999)
- October 17 – Miguel Delibes, Spanish novelist (d. 2010)
- October 19 – Pandurang Shastri Athavale, founder of the Swadhyay Movement (d. 2003)
- October 22 – Timothy Leary, American psychologist and author, proponent of LSD (d. 1996)
- October 29 – Baruj Benacerraf, Venezuelan-born immunologist, recipient of the Nobel Prize in Physiology or Medicine (d. 2011)
- October 30 – Norman Bird, British character actor (d. 2005)
- October 31
- November 2 – Ann Rutherford, Canadian actress (d. 2012)
- November 17 – George Dunning, cartoon director and animator (d. 1979)
- November 21 – Stan Musial, American baseball player (d. 2013)
- November 22 – Anne Crawford, British actress (d. 1956)
- November 25 – Ricardo Montalban, Mexican actor (d. 2009)
- November 27 – Buster Merryfield, British actor (d. 1999)
- November 28 – Patrick Campbell Rodger, Scottish Anglican bishop (d. 2002)
- November 29 – Yegor Ligachev, Soviet politician
- November 30 – Virginia Mayo, American actress (d. 2005)
- December 6
- December 9 – Carlo Azeglio Ciampi, President of the Italian Republic
- December 10 – Stanko Todorov, Bulgarian communist politician (d. 1996)
- December 13 – Sally Mansfield, American actress (d. 2001)
- December 21 – J. Roderick MacArthur, American businessman and philanthropist (d. 1984)
- December 24 – Evgeniya Rudneva, Soviet World War II heroine (d. 1944)
- December 29
- December 30 – Jack Lord, American actor (d. 1998)
- December 31 – Rex Allen, American actor, singer, songwriter (d. 1999)
- January 2 – Paul Adam, French writer (b. 1862)
- January 3 – Zygmunt Janiszewski, Polish mathematician (b. 1888)
- January 4 – Benito Pérez Galdós, Spanish novelist (b. 1843)
- January 6 – Walter Cunliffe, English banker (b. 1856)
- January 6 – Hieronymus Georg Zeuthen, Danish mathematician (b. 1839)
- January 7 – Edmund Barton, Prime Minister of Australia (b. 1849)
- January 14 – John Francis Dodge, American automobile manufacturer (b. 1864)
- January 16 – Reginald De Koven, American composer, conductor and critic (b. 1859)
- January 18 – Giovanni Capurro, Italian poet (b. 1859)
- January 22 – Georg Lurich, Estonian Greco-Roman wrestler and strongman (b. 1876)
- January 24
- January 25 – Jeanne Hébuterne, French artist, model, and common-law wife of Amedeo Modigliani (suicide) (b. 1898)
- February 2 – Field E. Kindley, American World War I aviator (b. 1896)
- February 3 – Frank Brown, Governor of Maryland (b. 1846)
- February 6 – Augustus F. Goodridge, Canadian merchant and politician (b. 1839)
- February 7 – Aleksandr Kolchak, Russian naval commander (b. 1874)
- February 11 – Gaby Deslys, French dancer, actress & spy (b. 1881)
- February 15
- February 20
- February 27 – William Sherman Jennings, Governor of Florida (b. 1863)
- March 1
- March 3 – Theodor Philipsen, Danish painter (b. 1840)
- March 4 – Roswell P. Bishop, U.S. Congressman from Michigan (b. 1843)
- March 7 – Jaan Poska, Estonian barrister and politician (b. 1866)
- March 11 – Julio Garavito Armero, Colombian astronomer (b. 1865)
- March 13 – Charles Lapworth, English geologist (b. 1842)
- March 15 – Rudolf Berthold, German World War I fighter ace (b. 1891)
- March 21 – Evelina Haverfield British suffragette (b. 1867)
- March 26
- William Chester Minor, American surgeon (b. 1834)
- Mary Augusta Ward, Tasmanian novelist (b. 1851)
- March 31
- April 1 – Walter Simon, German philanthropist (b. 1857)
- April 8
- April 10 – Moritz Cantor, German historian of mathematics (b. 1829)
- April 21 – Maria L. Sanford, American educator (b. 1836)
- April 26 – Srinivasa Ramanujan, Indian mathematician (b. 1887)
- May 1 – Princess Margaret of Connaught, Crown Princess of Sweden (b. 1882)
- May 11
- May 14 – Ronald Montagu Burrows, English archaeologist (b. 1867)
- May 15
- May 16 – Levi P. Morton, Vice President of the United States (b. 1824)
- May 21
- May 23 – Svetozar Borojevic, Austro-Hungarian field marshal (b. 1856)
- May 28 – Hardwicke Rawnsley, English clergyman, poet, writer of hymns and conservationist (b. 1851)
- May 30 – George Ernest Morrison, Australian adventurer (b. 1862)
- June 5
- June 6 – James Dunsmuir, Canadian politician (b. 1851)
- June 13 – Essad Pasha, Prime Minister of Albania (b. 1863)
- June 14
- June 18
- June 20
- June 27 – Adolphe Basile Routhier, Canadian judge, author and lyricist (b. 1839)
- July 1 – Delfim Moreira, President of Brazil (b. 1868)
- July 2 – William Louis Marshall, American general and engineer (b. 1846)
- July 3 – William Crawford Gorgas, American Army surgeon (b. 1854)
- July 5 – Max Klinger, German painter and sculptor (b. 1857)
- July 10 – John Fisher, 1st Baron Fisher, British admiral (b. 1841)
- July 11 – Empress Eugénie of France (b. 1826)
- July 14 – Albert Keller, German painter (b. 1844)
- July 17 – Sir Edmund Elton, 8th Baronet (b. 1846)
- July 22 – William Kissam Vanderbilt, American heir (b. 1849)
- August 1
- August 2 – Ormer Locklear, American pilot (b. 1891)
- August 9 – Samuel Griffith, Australian politician and judge (b. 1845)
- August 10
- August 12 – Hermann Struve, Russian-born astronomer (b. 1854)
- August 16
- August 17 – Ray Chapman, baseball player (b. 1891)
- August 22 – Anders Zorn, Swedish painter (b. 1860)
- August 26 – James Wilson, Scottish-born American politician (b. 1835)
- August 31 – Wilhelm Wundt, German physiologist and psychologist (b. 1832)
- September 5 – Robert Harron, American actor (b. 1893)
- September 7 – Simon-Napoléon Parent, Premier of Quebec (b. 1855)
- September 10 – Olive Thomas, American actress (b. 1894)
- September 18 – Robert Beaven, Canadian politician (b. 1836)
- September 24 – Peter Carl Fabergé, Russian jeweler (b. 1846)
- September 25 – Jacob Schiff, German-born banker and philanthropist (b. 1847)
- September 30 – William Wilfred Sullivan, Canadian journalist, politician, and jurist (b. 1843)
- October 2
- October 5 – William Heinemann, English publisher (b. 1863)
- October 7 – Yves Delage, French zoologist (b. 1854)
- October 10 – Hudson Stuck, English mountaineer (b. 1865)
- October 17
- October 24 – Grand Duchess Marie Alexandrovna of Russia (b. 1853)
- October 25 – Alexander of Greece, Greek king (b. 1893)
- November 1 – Kevin Barry, Irish republican (hanged) (b. 1902)
- November 2
- Louise Imogen Guiney, American poet and essayist (b. 1861)
- James Daly, Irish mutineer (firing squad)
- November 3 – Warren Terhune, United States Navy Commander, and the 13th Governor of American Samoa (b. 1869)
- November 4 – Ludwig Struve, Russian astronomer (b. 1858)
- November 13 – Luc-Olivier Merson, French painter and illustrator (b. 1846)
- November 21 – Michael Hogan, Irish activist shot during a Gaelic football match by the British army, who also killed 14 Irish supporters
- November 22 – Manuel Pérez y Curis, Uruguayan poet (b. 1884)
- November 23 – George Callaghan, British admiral (b. 1852)
- November 25
- November 30 – Eugene W. Chafin, American politician (b. 1852)
- December 3 – William de Wiveleslie Abney, English astronomer and photographer (b. 1843)
- December 11 – Olive Schreiner, South African writer (b. 1855)
- December 12 – Edward Gawler Prior, Canadian mining engineer and politician (b. 1854)
- December 14 – George Gipp, American football player (b. 1895)
- December 24 – Stephen Mosher Wood, American Politician (b. 1832)