Club Social y Deportivo Municipal, also known as Municipal or Los Rojos (the Reds), is a Guatemalan professional football club based in Guatemala City.

They compete in the Liga Nacional, the top tier of Guatemalan football, and play their home matches at the Estadio El Trébol. As of 2015, they are the team that has remained the most years at the top level in Guatemala, having done so since the inception of the national league in 1942. They have won the domestic league 31 times; most recently winning the 2019 Apertura tournament. They won the CONCACAF Champions' Cup in 1974.

Municipal is the most popular football club in Guatemala and are traditional arch-rivals of Comunicaciones, who is also based in Guatemala City, and with whom they share the lead in all-time league titles in the country with 31 each as of 2022.