Sione Katoa (born 21 August 1997) is a Tonga international rugby league footballer who plays on the wing for the Cronulla-Sutherland Sharks in the NRL.

[6] After impressing in the pre-season trials for the Sharks, Katoa had beaten the likes of Edrick Lee and Aaron Gray to the vacant wing spot for Round 1.

[8][9] Katoa ended the season playing for Cronulla's feeder club side Newtown in the Intrust Super Premiership NSW.

Katoa played on the wing for Newtown in their 2018 Intrust Super Premiership NSW grand final loss to Canterbury-Bankstown at Leichhardt Oval.

[10] Katoa made 7 appearances for Cronulla-Sutherland in the 2019 NRL season but mainly spent much of the year playing for the club's feeder side Newtown in the Canterbury Cup NSW.

Katoa played for Newtown in their 2019 Canterbury Cup NSW grand final victory over the Wentworthville Magpies at the new Western Sydney Stadium.