Transportation
* SS 1, a British car of the 1930s and predecessor to the Jaguar * China Railways SS1, an electric locomotive model used in China * Moore SS-1, a glider * Reliant Scimitar SS1, a sports car made by Reliant during the 1980sMilitary and space
* USS ''Holland'' (SS-1), the first submarine of the U.S. Navy * SpaceShipOne, a spaceplane that completed the first privately funded crewed space flight * Pindad SS1, an Indonesian assault rifle * SS-1 Scud, the NATO reporting name for a series of Soviet missilesOther uses
* SS1 (classification), a Les Autres sport classification * Sky Sports 1, a British satellite sports channel * ''Space Ship One'' (album), an album by Paul Gilbert {{Letter-NumberCombDisambig