L19, L-19 or L.19 may refer to:
Vehicles Cessna L-19 Bird Dog, an American liaison aircraft , a submarine of the Royal Navy , a destroyer of the Royal Navy , a landing ship of the Indian Navy , a Leninets-class submarine Zeppelin L.19 (LZ 54), an airship of the Imperial German Navy L-19, a United States Navy L-class blimp
Proteins 60S ribosomal protein L19 Mitochondrial ribosomal protein L19 Ribosomal protein L19 leader
Other uses Lectionary 19, a 13th-century, Greek manuscript of the New Testament Wasco Airport, in Kern County, California