The Municipality of Atimonan (Filipino: Bayan ng Atimonan) or in (Spanish/Chavacano: El Pueblo de Atimonan) is a first class municipality in the province of Quezon, Philippines. It lies on the western shore of the province, 173 kilometres (107 mi) southeast of Manila. Atimonan is bounded by the municipalities of Gumaca, Plaridel, Pagbilao and Padre Burgos. According to the 2010 census, it has a population of 61,587 people.