1911

1911 (MCMXI) was a common year starting on Sunday in the Gregorian calendar and a common year starting on Saturday in the Julian calendar.

 Events 
 April 19 – Michel Fokine's Le Spectre de la Rose debuts in Monte Carlo with Nijinsky in the title role
 June 13 – Michel Fokine's Petrushka debuts in Paris with Nijinsky in the title role
 December 14 – Roald Amundsen arrived the south pole
 Date unknown 
 The Secret Garden is published
 Allvar Gullstrand, Swedish ophthalmologist, won the 1911 Nobel Prize in Physiology or Medicine
 The Encyclopædia Britannica Eleventh Edition is published

 Births 

 January 
 January 1 – Hank Greenberg, American baseball player (d. 1986)
 January 11 – Zenkō Suzuki, Prime Minister of Japan (d. 2004)
 January 18 – Danny Kaye, American actor, singer, dancer, and comedian (d. 1987)
 January 22 – Bruno Kreisky, Chancellor of Austria (d. 1990)
 January 26 – Polykarp Kusch, German-American physicist (d. 1993)

 February 
 February 6 – Ronald Reagan, fortieth President of the United States (d. 2004)
 February 19 – Merle Oberon, British actress (d. 1979)

 March 
 March 3 - Jean Harlow, American actress (d. 1937)
 March 12 – Gustavo Díaz Ordaz, 49th President of Mexico (d. 1979)
 March 24 – Joseph Barbera, American cartoonist (d. 2006)
 March 25 – Jack Ruby, assassin of Lee Harvey Oswald (d. 1967)
 March 26 – Tennessee Williams, American writer (d. 1983)

 April 
 April 5 – Hedi Amara Nouira, 2nd Prime Minister of Tunisia (d. 1993)
 April 8 – Emil Cioran, Romanian philosopher and essayist (d. 1995)
 April 8 – Melvin Calvin, American chemist (d. 1997)
 April 20 – Kukrit Pramoj, Prime Minister of Thailand (d. 1995)
 April 23 – Józef Cyrankiewicz, Prime Minister of Poland (d. 1989)

 May 
 May 17 – Maureen O'Sullivan, Irish-American actress (d. 1998)
 May 27 – Vincent Price, American actor (d. 1993)
 May 27 – Hubert H. Humphrey, thirty-eighth Vice President of the United States (d. 1978)
 May 31 – Maurice Allais, French economist (d. 2010)

 June 
 April 20 – Milovan Đilas, Yugoslav politician and philosopher (d. 1995)
 June 13 – Luis Walter Alvarez, American physicist, Nobel Prize laureate (d. 1988)
 June 22 – Princess Cecilie of Greece and Denmark (d. 1937)
 June 24 – Juan Manuel Fangio, Argentine race car driver (d. 1995)
 June 29 – Bernard Herrmann, American composer and conductor (d. 1975)
 June 29 – Prince Bernhard of the Netherlands, consort of Queen Juliana of the Netherlands (d. 2004)

 July 
 July 5 – Georges Pompidou, President of France (d. 1974)
 July 7 – Gian Carlo Menotti, Italian-American composer and librettist (d. 2007)
 July 16 – Ginger Rogers, American actress and dancer (d. 1995)
 July 17 – Yang Jiang, Chinese writer (d. 2016)

 August 
 August 5 – Robert Taylor, American actor (d. 1969)
 August 6 – Lucille Ball, American actress (d. 1989)
 August 11 – Thanom Kittikachorn, Prime Minister of Thailand (d. 2004)
 August 12 – Cantinflas,  Mexican comic film actor, producer, and screenwriter(d. 1993)
 August 17 – Mikhail Botvinnik, world chess champion (d. 1995)

 September 
 September 7 – Todor Zhivkov, General Secretary of the Central Committee of the Bulgarian Communist Party (d. 1998)
 September 9 – John Gorton, 19th Prime Minister of Australia (d. 2002)
 September 13 – Sicco Mansholt, Dutch politician (d. 1995)
 September 24 – Konstantin Chernenko, Soviet Politician (d. 1985)

 October 
 October 13 – Ashok Kumar, Indian actor (d. 2001)
 October 26 – Mahalia Jackson, American gospel singer (d. 1972)

 November 
 November 2 – Odysseas Elytis, Greek writer (d. 1996)

 December 
 December 23 – Niels Kaj Jerne, Danish immunologist (d. 1994)

 Deaths 
 January 17 – Sir Francis Galton
 March 1 – Jacobus Henricus van 't Hoff
 April 25 – Emilio Salgari
 May 18 – Gustav Mahler
 May 21 – Williamina Fleming
 May 29 – William S. Gilbert
 June 9 – Carrie Nation
 August 1 – Edwin Austin Abbey
 August 8 – William P. Frye
 September 16 – Edward Whymper
 October 7 – John Hughlings Jackson
 October 14 – John Marshall Harlan
 October 29 – Joseph Pulitzer
 October 31 – John Joseph Montgomery
 December 10 – Joseph Dalton Hooker