Jason Barry (born 14 December 1972) is an Irish actor best known for his portrayal of Tommy Ryan in the 1997 film Titanic. He also starred in The Still Life, for which he won numerous awards.

Jason Barry was born in Artane, Dublin, Ireland. He has two brothers, Keith and Glen.

Barry is a graduate of The Samuel Beckett Center for performing arts at Trinity College, Dublin. His first lead role was in a BBC Film called Screen Two: O Mary This London (1994).

In 1997, he played Tommy Ryan in the film Titanic.

Jason had a recurring role as Dano, a member of the Continuity IRA in the third and fourth seasons of the Irish crime series Love/Hate.

In 2014, Jason played the role of Edgar Willcox in United Passions, a film detailing the history of FIFA. Its release was set to coincide with the beginning of the 2014 World Cup in Brazil.

In 2016, he performed voiceover and motion capture work as Corporal Sean Brooks in Call of Duty: Infinite Warfare, a first-person shooter video game developed by Infinity Ward and published by Activision.

Jason Barry has two daughters, Freya Barry, born in 2005, and Nova Barry, born in 2007.