TS, ts or Ts may stand for:

• Air Transat IATA code
• Taittiriya Samhita of the Black Yajurveda.
• Teamspeak, a voice chat software
• Team Slayer, referring to the matchmaking setup on XBOX Live for Halo 2.
• Teaspoon
• Technical System TRIZ term
• Tegan and Sara
• Telesync, a movie piracy method
• Tenor Saxophone, musical instrument, reeds
• Tensile strength
• Terminal Services in Microsoft Windows
• The Specialists
• Thymidylate synthase
• Tidewater Southern Railway
• Timestamp, as in {ts '2005-10-27 00:00:00'}, when viewing a raw database entry
• TinySex
• Ts in chemistry is a toluenesulfonyl group.
• Top Secret in classified documents
• Tourette syndrome
• Transport stream MPEG-2
• Transsexual
• Tropical Storm
• Ts (digraph)
• Tuberous sclerosis
• Turbine Steamer (a ship prefix)
• Turing Scholars Program, an honors program at the University of Texas at Austin
• Turner syndrome
• Twin Spark usually in the context of Alfa Romeo engines.
• Twisted Sister, the rock band
• Voiceless alveolar affricate

Ts | TS | TS | Ts