L19

L19, L-19 or L.19 may refer to:

Vehicles

• Cessna L-19 Bird Dog, an American liaison aircraft
• HMS L19, a submarine of the Royal Navy
• HMS Haldon (L19), a destroyer of the Royal Navy
• INS Mahish (L19), a landing ship of the Indian Navy
• Soviet submarine L-19, 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