After representing Fiji at the World Cup, Taane Milne will stay in Australia and return to South Sydney for 2027.
The 31-year-old has played 20 Tests for Fiji and will join pre-season training, entering the club's top 30.
At Huddersfield, he played 30 games in two seasons and improved his disciplinary record.
"Taane always gives 100% effort when he plays Rugby League and he will be welcomed back here at South Sydney following a stint in the UK," Ellison said.
Milne debuted with St George Illawarra in 2016, playing 18 games, then made one Warriors appearance in 2019.
He joined Souths in 2021 and made 69 appearances through 2024, though discipline was a recurring issue.
Recruitment head Mark Ellison said Milne would provide depth across the outside backs and back row.
His club and international experience could help mentor South Sydney's young talent across the backline and forward pack.