Carlos Alberto Méndez Castillo (born June 18, 1974) is a Venezuelan former professional baseball first baseman and coach. He played in Major League Baseball (MLB) for the Baltimore Orioles in .
He served as an assistant hitting coach for the Atlanta Braves in 2025.
In 26 games, Méndez batted .222 (10-for-45), with five RBI, three runs and three doubles.
Most recently, Méndez played in the Atlanta Braves farm system in , playing 82 games for the Richmond Braves.
On November 22, 2024, Méndez was hired by the Braves to serve as an assistant hitting coach.