Mateo Carreras (born 17 December 1999) is an Argentine professional rugby union player who plays on the wing for Top 14 club Bayonne and the Argentina national team.
On 21 November 2019, he was named in the Jaguares squad for the 2020 Super Rugby season.
Carreras joined Newcastle Falcons in December 2020.
In November 2023, Mateo Carreras agreed to join France's Top14 club Bayonne at the end of Newcastle's 2023-24 Premiership season.