SS4 may refer to: SS-4 Sandal, a Soviet theatre ballistic missile Ambrosini SS.4, an Italian fighter aircraft prototype Pindad SS4, an Indonesian battle rifle in development SS 4, an Italian state highway, linking Rome to the Adriatic sea Super Select, a four-wheel drive system produced by Mitsubishi , a submarine of the United States Navy Super Saiyan 4, a fictional transformation from the Dragon Ball series