is a Japanese rugby union player who plays as a Flanker or Number 8 for Top 14 side Bordeaux Bègles.
Tatafu was called-up to his country's wider training squad in April 2021, ahead of British and Irish Lions test. On 24 May, he was named in the 36-man squad for the match against the Sunwolves and tour of Scotland and Ireland. He had previously made 3 appearances for Japan in 2016, debuting against Korea in the 2016 Asia Rugby Championship.