WST may refer to: Web Science Trust, a UK Charitable Trust Western Standard Time, a proper name for one of Australia's time zones observed in Western Australia (UTC +8) West Samoa Time, the standard West Samoa Time Zone Samoan tala, the ISO 4217 code for the currency of Samoa Water Soluble Tetrazolium, in relation to Tetrazolium salts World System Teletext Weapons System Trainer, US military term for a flight simulator optimised for weapons training Wholesale sales tax, a form of sales tax Willamette Shore Trolley, a heritage streetcar service in Oregon, United States Water Science and Technology, a scientific journal on the management of water quality. Westerly State Airport IATA code Wood Street railway station, London, National Rail station code World Snooker Tour, the main professional snooker tournament arrangement