WAST may refer to:

• Western Australia Standard Time
• WAST-LP, a defunct low-power television station in Ashland, Wisconsin
• WNYT (TV), a television station (channel 13 analog/12 digital) licensed to Albany, New York, United States, which used the call sign WAST until September 1981
• West Africa Summer Time, a time zone used in Namibia
• Wast Water, a lake in Cumbria, England
• wast, a past-tense form of to be formerly used with the pronoun thou

• .45 GAP
• 45 GAP
• .45GAP
• .45 grave
• 45 Grave
• 45 grave
• 4.5 inch Gun
• .45LC
• .45 LC
• .45 Long Colt
• 45 nanometre
• 45 nm
• 45 (number)
• 45 or 46 Songs That Weren't Good Enough to Go on Our Other Records
• 45 record
• 45 Record
• 45rpm
• 45-rpm record
• 45 rpm record
• 45rpm single
• .45 Schofield
• 45S&W
• .45S&W
• 45th Annual Grammy Awards
• 45th Infantry Division (United States)