Tony Sund (born 4 August 1995) is a Finnish professional ice hockey defenceman for HIFK of Liiga. Internationally, he represented the Finnish national team.
He was signed as an undrafted free agent by the San Jose Sharks on 9 May 2019, and represented Finland at the 2021 IIHF World Championship.
On March 3, 2023, Sund's NHL rights were traded to the Montreal Canadiens as part of a three-team trade.