Luis Antonio Marín Barahona (born 18 May 1983) is a Chilean former footballer who plays goalkeeper.

Marin began his professional career playing for Audax Italiano from 2003 to 2006, and later in 2007 he joined Lota Schwager.

His performances at Unión led to being selected for the Chile national football team to play in the 2010 FIFA World Cup.

[1] On 18 December 2014, after he finished contract with Universidad de Chile, Marin signed for Sporting Kansas City of Major League Soccer.

After playing Sporting KC's first eight matches (2–2–4) of 2015 with 19 saves, three shutouts and a 1.50 goals against average, Marin agreed to terminate his contract on 27 May.