USS

USS may refer to:

• Ubiquitous Synergy Seeker, a Canadian band
• Universal Studios Singapore, a theme park in Singapore

• Union of Sovereign States, the planned successor to the Soviet Union
• Union Switch & Signal, a supplier of railroad switching equipment
• Union Syndicale Suisse, the Swiss Trade Union Confederation
• United Seamen's Service, a non-profit, federally chartered organization founded in 1942
• United State of Saurashtra, a separate, western State within the Union of India from 1948 until 1956
• United States Senate, the upper chamber of the United States Congress
• U.S. Steel Corporation
• USA Swimming, formerly United States Swimming, the national governing body for competitive swimming in the US
• Universities Superannuation Scheme, a pension scheme in the United Kingdom
• United Peasant Party (Ujedinjena seljačka stranka), a political party in Serbia

• Unformatted System Services, the mechanism within VTAM to format a session's logmode and application. An equivalent facility in TN3270 also specifies a logon screen.
• UNIX System Services, a component of z/OS that provides Unix compatibility
• Upload Speed Sense, a method of regulating a host's upload bandwidth in the eMule client

• Ultrasound scan, a scientific and medical imaging technique (usually refers to medical ultrasound)
• Upshaw–Schulman syndrome, the recessively inherited form of thrombotic thrombocytopenic purpura
• Universal Spinal System, an implantable device (instrumentation) system for correcting scoliosis

• University of Southern Somalia
• Uxbridge Secondary School, a high school in Uxbridge, Ontario, Canada

• United States Ship, typically as a ship prefix in the United States Navy (includes submarines)
• United States Standard, an older standard of screw thread
• In the fictional Star Trek universe, either United Space Ship or United Star Ship