Rónald Marín Duran (born 2 November 1962) is a retired Costa Rican football defender who was a non-playing squad member for Costa Rica in the 1990 FIFA World Cup.
[3] In 1994, when at Alajuelense, he was suspended for 16 matches after pushing a referee.
[4] Marín made his debut for Costa Rica in a February 1990 Marlboro Cup match against the Soviet Union and earned a total of 3 caps in successive games, scoring no goals.
Marín has been working for the Road Safety Council since 2011.
This biographical article related to Costa Rican association football is a stub.