Sione Ahio (born 29 January 2001) is a New Zealand rugby union player, who plays for the and . His preferred position is prop.
Ahio attended Liston College where he played rugby. He plays his club rugby for Waitemata. He was selected for the New Zealand U20s in 2021.
Ahio has represented in the National Provincial Championship since 2021, being named in their full squad for the 2023 Bunnings NPC. He was named in the squad for the 2024 Super Rugby Pacific season.