BS15

BS15 may refer to:
 * BS15, a BS postcode area for Bristol, England
 * Bonomi BS.15 Bigiarella, a glider
 * BS-15 Sar Gavia, a Spanish Maritime Safety and Rescue Society tugboat
 * BS 15 Specification for Structural Steel for Bridges, etc., a British Standard
 * BS15, a left-hand threaded valve for gas cylinders