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.

• 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

• 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

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

• 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 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 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)

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

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

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

• 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