L17 or L-17 may refer to:

Vehicles , a support ship of the Royal Danish Navy , a submarine of the Royal Navy , a tank landing ship of the Indian Navy Lichi L17, a Chinese microcar Ryan L-17 Navion, an American light aircraft , a Leninets-class submarine Zeppelin LZ 53 (military designation L 17), an Imperial German Navy airship of World War I L-17, a United States Navy L-class blimp

Proteins 60S ribosomal protein L17 L17 ribosomal protein leader Mitochondrial ribosomal protein L17

Other uses Lectionary 17, a Greek manuscript of the New Testament, dating between the 9th and the 12th century Taft Airport, in Kern County, California