L18

L18, L-18 or L.18 may refer to:

Vehicles

 * Aircraft
 * Albatros L 18, a German biplane
 * Lockheed L-18 Lodestar, an American passenger aircraft
 * L18, a United States Navy L-class blimp
 * Piper L-18, an American light aircraft
 * Ships
 * HMS L18, a submarine of the Royal Navy
 * HMS Flamingo (L18), a sloop of the Royal Navy
 * HMS Talybont (L18), a destroyer of the Royal Navy
 * INS Cheetah (L18), a tank landing ship of the Indian Navy
 * SOVIET SUBMARINE L-18, a Leninets-class submarine

Other uses

 * 60S ribosomal protein L18
 * Fallbrook Community Airpark, in San Diego County, California
 * Lectionary 18, a 12th-century, Greek manuscript of the New Testament
 * Mitochondrial ribosomal protein L18
 * Nissan L18 engine, an automobile engine