Tommaso Allan (Tommy) (/ˈælən/; born 26 April 1993) is an Italian professional rugby union player who primarily plays fly-half for Perpignan of the French Top 14.

[2][3][4] Allan was part of the London Wasps Academy in 2011 before captaining the RGS High Wycombe rugby side.

He won the Under-19 Provincial Championship while playing for Western Province in South Africa and at the end of his contract there, he joined Perpignan.

Allan made his debut for Perpignan on 8 September 2013 against Racing Métro at Stade Olympique Yves-du-Manoir in the Hauts-de-Seine, Paris.

[6][7] It was announced on 5 May 2021, that Allan had been signed by the English Premiership team Harlequins, to begin his career with them ahead of the 2021/22 season.