1911 is a year in the Gregorian calendar.
1911 may also refer to:
Aircraft Bristol 1911 Monoplane Epps 1911 Monoplane
Comets 1911 IV (C/1911 S3), discovered by Sergei Ivanovich Beljawsky 1911 V (C/1911 O1), discovered by William Robert Brooks
Firearms M1911, a semi-automatic pistol Remington 1911 R1, modeled after the M1911 Ruger SR1911, modeled after the M1911 Winchester Model 1911, a semi-automatic shotgun
Mass media 1911 (film) 1911 Encyclopædia Britannica