Deering Oaks is a 55-acre public park in Portland, Maine, which has a baseball diamond, tennis courts, a playground, and a pond. It is located west of downtown Portland and is bordered by Deering Avenue on the west, Forest Avenue on the east, Park Avenue to the south and Interstate 295 to the north. State Street bisects the park. Access is from State Street, Deering Avenue, or Park Avenue. The Portland Farmers Market is located on the Park Avenue side of the park.