Sione Katoa (born 26 January 1995) is a Tonga international rugby league footballer who last played for the Canterbury-Bankstown Bulldogs in the NRL.

Most of his junior league was played at the Randwick Kingfishers and Upper Hutt Tigers, before moving to Australia and being signed by the Sydney Roosters.

[15] Katoa was a member of the Penrith Panthers side that won the 2017 Intrust Super Premiership NSW and the 2017 NRL State Championship.

[16][17] Katoa made 20 appearances for Penrith in the 2018 NRL season as the club finished 5th and reached the elimination final before being defeated by Cronulla-Sutherland 21-20 at the Sydney Football Stadium.

[18] Katoa made a total of 15 appearances for Penrith in the 2019 NRL season as the club finished 10th on the table and missed out on the finals for the first time since 2015..