Tatu Miettunen (born 24 April 1995) is a Finnish professional footballer who plays as a central defender for Finnish premier division club Ilves.

Born in Mänttä, Miettunen moved to Pirkkala when he was five years old.

[1] He played in the youth sectors of Valo and Ilves.

Miettunen debuted with Ilves first team in the second-tier Ykkönen in the 2014 season.

After the promotion to top-tier Veikkausliiga for the 2015 season, Miettunen stayed with the club.