S/S may refer to:

  • A Ship prefix that identifies a vessel as steam powered
    • A common naming prefix for any Merchant vessel
  • S/S, a medical abbreviation for Signs and symptoms
  • In clothing, refers to short-sleeved (as opposed to L/S (long-sleeved))
  • Solidification / Stabilization (S/S) with Cement, a method of management and reuse of contaminated waste.

Read more about S/S:  See Also