L23 may refer to: Vehicles Beechcraft L-23 Seminole, an American military utility aircraft , submarine of the Royal Navy , a destroyer of the Royal Navy , an amphibious warfare vessel of the Indian Navy LET L-23 Super Blaník, a Czechoslovakian glider Zeppelin LZ 66, an airship of the Imperial German Navy Other uses 60S ribosomal protein L23 Mitochondrial ribosomal protein L23 Nissan L23 engine, an automobile engine Pahute Mesa Airstrip (FAA identifier L23)