San Luis Acatlán is a town in San Luis Acatlán Municipality located in the state of Guerrero, Mexico. It is located in the Costa Chica region of the state, about 158 km from Acapulco. Most often called simply "Acatlán", the name comes from the locality of Acatlán located in the modern state of Puebla. The name itself derives from Náhuatl, meaning "among the reeds". Indigenous shepards from Puebla arrived to this place between two rivers in Guerrero around 1750.