- February 11 - Hans Redlich, composer.
- February 11 - Rex Lease, American actor.
- June 19 - Lou Gehrig, (baseball player)
- July 2 - Olav V, (King of Norway)
- John von Neumann, Hungarian-American mathematician
- November 7 - Konrad Lorenz
- February 11 - Anton Bruckner's 9th Symphony premieres in Vienna.
- December 7 - Orville Wright flies the first aircraft with a petrol engine.
- Medicine - Niels Ryberg Finsen
- Literature - Bjørnstjerne Martinus Bjørnson
- Peace - William Randal Cremer