Thomson Sandlands Allan (born 5 October 1946 in Longridge) is a Scottish former professional footballer who played as a goalkeeper. Allan began his career at Hibernian in 1963, where he was a League Cup runner-up in 1968-69. He joined Dundee in 1971 and collected his only winner's medal at Hampden Park, when the Dark Blues defeated Celtic 1–0 in the 1973 Scottish League Cup Final.