Rock Castle or Rockcastle may refer to:

Rock castle, a type of medieval castle

in the United States (by state) Rockcastle, Kentucky, unincorporated community Rockcastle River, a river in Kentucky Rock Castle (Hendersonville, Tennessee), listed on the National Register of Historic Places in Sumner County, Tennessee Rock Castle, Virginia, a community Rock Castle (Virginia), listed on the National Register of Historic Places in Goochland County, Virginia Rock Castle, West Virginia, a community

See also Castle Rock