James Ratti (born 14 October 1997) is a Welsh rugby union player who plays as a back row forward for the Ospreys and Wales national team.

Ratti began his career with the Dunvant RFC youth side, playing as a number eight.

[8] Ratti departed Cardiff at the end of the 2022–23 United Rugby Championship season.

[10] Ratti was named on the bench against Scotland U20 in the 2016 Six Nations Under 20s Championship, but did not make an appearance.

[14] Ratti initially missed out on selection for the 2024 Wales rugby union tour of Australia, but following injuries within the team, he was added to the squad ahead of the first match against South Africa.