McCarren Park is a public park in Brooklyn, New York City. It is located in Greenpoint, Brooklyn and is bordered by Nassau Avenue, Bayard Street, Lorimer Street and North 12th Street. It is operated by the New York City Department of Parks and Recreation. Originally named Greenpoint Park, the park was renamed McCarren Park in 1909 after State Senator Patrick H. McCarren (1849-1909), who began work as a cooper at the Williamsburg sugar refineries and eventually became the Democratic boss of Brooklyn. The park is a popular destination for recreational softball, volleyball, soccer, handball, and other games. It is also used for sunbathing and dog-walking.