Mother Neff State Park is a 259-acre (105 ha) state park located on the Leon River west of Moody, Texas in Coryell County. The park is part of Mother Neff State Park and F.A.S. 21-B(1) Historic District, which was added to the National Register of Historic Places on October 2, 1992. The park's initial 6 acres (2.4 ha) were donated by Mrs. Isabella Eleanor Neff, mother of Governor Pat Morris Neff in 1916.