L23

L23 may refer to:

Vehicles

 * Beechcraft L-23 Seminole, an American military utility aircraft
 * HMS L23, submarine of the Royal Navy
 * HMS Whitley (L23), a destroyer of the Royal Navy
 * INS Gharial (L23), 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)