SS2
SS2 stands for:
- Via Cassia, the modern name of the Roman road
- SpaceShipTwo, a private spaceship company Virgin Galactic
SS-2 stands for:
- SS-2 Sibling, a fluid operated short -range missile; For details, see R-2 (rocket)
- USS Plunger (SS -2), one of the first submarines of the United States Navy
- Disambiguation
- Abbreviation