Ukuma Ta'ai (born 17 January 1987) is a Tongan professional rugby league footballer who plays as a second-row, loose forward or prop for the York Knights in the Championship and Tonga at international level.

He previously played for the New Zealand Warriors in the NRL and the Huddersfield Giants in the Super League.

Ta'ai was signed by the New Zealand Warriors in 2009 and made his début in a trial game against the North Queensland Cowboys.

[8] Ta'ai scored the Warriors first try against Penrith on 17 April after pouncing on a loose pass and crossing under the posts.

[6] At the conclusion of the 2015 season, Ta'ai played for Tonga in their Asia-Pacific Qualifier match against the Cook Islands for the 2017 Rugby League World Cup.