Mizumoto Park (水元公園, Mizumoto Kōen) is a park in Katsushika ward, Tokyo, Japan. It is named for Kōon Mizumoto, author of the Jōdoron kōen. It is the biggest park within the 23 special wards of Tokyo. The park is known for its diversity among plants and wild birds, and as an attraction spot during the Hanami season.