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TSW may refer to:

  • Tactical Support Wing, a unit of the United States Navy
  • Team Secret Whales, an esports team formed by the partnership of Team Secret and Team Whales
  • Television South West, the ITV franchise holder for the South West England region from 1 January 1982 until 31 December 1992
  • The Secret World, a 2012 MMORPG from developer Funcom
  • Tin Shui Wai, a town located in the northwestern part of the New Territories, Hong Kong, in Yuen Long District
  • Topical steroid withdrawal
  • Trader's and Scheduler's Workbench, Oil & Gas functionality for SAP ERP
  • Train Sim World, a series of video games from Dovetail Games
  • Tsuen Wan station, Hong Kong; MTR station code