SA1 or SA-1 can refer to:
Nintendo SA1, a microprocessor by Nintendo for use in SNES game cartridges SA1 Swansea Waterfront, the marketing name given to the brownfield development area located in Swansea Docks, South Wales the Royal mail postcode prefix for central Swansea Sonic Advance, a 2001 video game for the Game Boy Advance Sonic Adventure, a video game for the Sega Dreamcast, abbreviated as "SA1" by fans of the series to differentiate it from its sequel, Sonic Adventure 2 SA-1 Guild, the NATO name for the S-25 Berkut, the first operational surface-to-air guided missile, used by the Soviets SA-1 (Apollo), an Apollo-flight