Carmelo Daniel Villalba is a former Argentine football defender.
He played in the final of the 1985 Copa Libertadores for Argentinos Juniors.
He then played in the lower leagues of Argentine football for Galaxia de Puerto Iguazu, Chacarita Juniors, Club Atlético Tigre and CSD Tristán Suárez.
After retiring as a player Villalba became a coach, working in the youth development system at Argentinos Juniors.
This biographical article related to an Argentine association football defender is a stub.