Thomas "Tommy" Gemmell (16 October 1943 – 2 March 2017) was a Scottish football player and manager.

He served as a left-sided fullback and had powerful shooting ability.

Gemmell is best known as one of the Celtic side who won the 1966–67 European Cup; he scored the first Celtic goal in the final. Gemmell played 18 times for Scotland, and also played for Nottingham Forest, Miami Toros and Dundee. After retiring as a player in 1977, Gemmell managed Dundee and Albion Rovers.

Gemmell died on 2 March 2017, aged 73, after a long illness.