Abucay (Kapampangan: Balen ning Abucay; Tagalog: Bayan ng Abucay) is a third-class municipality in the province of Bataan, Philippines. According to the 2010 census, it has a population of 37,719 people. The mainly agricultural and fishing town is located on the eastern part of the Bataan Peninsula, along Manila Bay, with a total land area of 7,972 hectares (19,700 acres). Its westernmost elevated section is located within the Bataan National Park.