Esteban Patricio Matus Castro (born 12 February 2002) is a Chilean footballer who plays as a left-back for Chilean Primera División side Audax Italiano.
Club career.
In his early career, Matus played "baby-fútbol" and took part in the 2015 Copa Enel with the Santiago city team. 
A product of the Audax Italiano youth system, Matus made his senior debut in the Chilean Primera División match against Ñublense on 7 February 2022. In February 2024, Matus was loaned out to Unión La Calera. He returned to Audax Italiano in the second half of the same year.
International career.
Matus represented Chile at under-23 level in the 2024 Pre-Olympic Tournament. He made an appearance in the 5–0 loss against Argentina.
At senior level, he received his first call up for the friendly match against Panama on 8 February 2025.