BS33 may refer to: * BS 33 Carbon Filament Electric Lamps, a British Standard * BS-33 Marta Mata, a Spanish Maritime Safety and Rescue Society tugboat * BS 33, a Royal Lao Army Airborne Border Police Special Battalion This disambiguation page lists articles associated with the same title formed as a letter-number combination. If an internal link led you here, you may wish to change the link to point directly to the intended article.