TSW may refer to:
- Television South West, the ITV franchise former holder for the South West England region from 1 January 1982 until 31 December 1992
- Tiger Sports Wheels, a custom alloy wheel manufacturer
- Tin Shui Wai, a town located in the northwestern part of the New Territories, Hong Kong, in Yuen Long District
- The Secret World, an MMORPG from developer Funcom
- Trader's and Scheduler's Workbench, Oil & Gas functionality for SAP ERP