Liligiifo Sao (born 11 October 1992) is a Samoa international rugby league footballer who plays as a prop and loose forward for Hull F.C.

Sao previously played for the Manly Warringah Sea Eagles and the New Zealand Warriors in the NRL.

[6] On 22 July 2015, three days before they were due to play Manly in Auckland, the Warriors announced that they had signed Sao for the 2016 and 2017 seasons.

In round 20 of the 2022 Super League season, Sao was sent off for a dangerous high tackle in Hull FC's 46-18 loss against Castleford.

[12] In round 1 of the 2024 Super League season, Sao was sent to the sin bin during the clubs 22-0 loss to arch-rivals Hull Kingston Rovers.