Mario Arnaldo Gómez Castellanos (born 12 August 1981) is a Honduran footballer.

Gómez played for New Jersey Stallions, Vida and Victoria, before joining F.C.

Motagua but could not stay more than a year due to inconsistency and lack of appearances.

Gómez made his debut for Honduras in a March 2005 friendly match against the United States, coming on as a second-half substitute for Carlos Morán.

This biographical article related to Honduran association football is a stub.