L11

L11 or L-11 may refer to:

Aircraft

 * Albatros L 11, a German biplane bomber
 * Daimler L11, a German monoplane fighter
 * Lucas L11, a French ultralight

Locomotives

 * LSWR L11 class, a British steam locomotive

Ships

 * USS L-11 (SS-51), a submarine of the United States Navy
 * HMS L11, a submarine of the Royal Navy
 * HMS Fernie (L11), a destroyer of the Royal Navy
 * HMS Intrepid (L11), an amphibious warfare ships of the Royal Navy

Weapons

 * L-11 76.2 mm tank gun, a Soviet tank gun
 * Blohm & Voss L 11, a German experimental anti-ship missile
 * M2 Browning, a machine gun designated L11 by the British Army
 * Royal Ordnance L11, a British tank gun
 * L-11, the assembly number of the Little Boy atomic bomb dropped on Hiroshima

Other uses

 * 60S ribosomal protein L11
 * Barcelona Metro line 11, a light metro line in Barcelona, Spain
 * Mitochondrial ribosomal protein L11
 * Nikon Coolpix L11, a digital camera