L20, L-20 or L.20 may refer to:

Vehicles Aircraft Daimler L20, a German light aircraft de Havilland Canada L-20 Beaver, a Canadian utility aircraft Zeppelin LZ 59, an airship of the Imperial German Navy L-20, a United States Navy L-class blimp

Automobiles Scania-Vabis L20, a Swedish truck Severin L20, an American automobile Suzulight Carry (L20), a Japanese kei truck Toyota Tercel (L20), a Japanese subcompact car

Ships , a submarine of the Royal Navy , a destroyer of the Royal Navy , an amphibious warfare vessel of the Indian Navy , a Leninets-class submarine

Proteins Mitochondrial ribosomal protein L20 Ribosomal protein L20 leader

Other uses L2O, a 3 Michelin star restaurant which closed in 2014 Lectionary 20, a Greek manuscript of the New Testament, dated 1047 Nikon Coolpix L20, a digital camera Nissan L20 engine, an automobile engine

See also L2O, with a letter "O" instead of a zero