Tass Mourdoukoutas (born 3 March 1999) is an Australian professional soccer player who plays as a defender for Perth Glory.

[5] In 2017, he joined the Western Sydney Wanderers Academy, where he played for both the club’s National Premier Leagues NSW 2 side and Championship-winning Foxtel Y-League team.

[5] Mourdoukoutas made his professional debut for Western Sydney Wanderers in a 1–1 draw with Wellington Phoenix on 13 January 2018, coming on for Steven Lustica in the 88th minute.

[6] He signed his first professional contract with the Wanderers on 8 June 2018, penning a two-year deal with the club.

[12] In June 2022, Mourdoukoutas signed with Canadian Premier League side York United through 2023.