Luke Tagi (born 23 June 1997) is a Fijian rugby union player who plays as a Tighthead prop at Bayonne in the Top 14.

[2][3][4] [5] In 2019 he signed a three-season contract for Top 14 side Stade Français, making his debut in a 46–16 loss to Castres.

[6] He played for the Fijian under-20s side in the IRB Junior World rugby Trophy.

[7] He made his debut for the national side against Georgia in 2021.

He was selected in the squad for the 2023 Rugby World Cup.