Asan (Chamorro: Assan) is a village located on the western shore of the United States territory of Guam. The municipality of Asan-Maina combines Asan with Maina, a community in the hills to the east. It was a primary landing site for United States Marines during Guam's liberation from the Japanese during World War II. Asan Beach Park is part of the War in the Pacific National Historic Park.