University College, Durham, a constituent college located in Durham Castle
A hamlet in Bowerchalke parish, south-west Wiltshire, England (OS grid ref SU0122).
A community (without a council) in Cardiff, Wales; it includes Cardiff Castle.
A community (without a council) in Swansea, Wales; it includes Swansea Castle.
A town in Okfuskee County, Oklahoma, United States, derived from the surname.
Castle class, a class of steam locomotives used on the GWR
A surname transferred from the common noun referring to someone who lived in or worked in a castle
A town in County Durham, England.
A statutory town in Logan County, Colorado, United States, named after George Crook
An unincorporated community in Osage County, Missouri, United States, so named because of a local merchant's business practices (thus being derived from crook (thief)).
A surname.
A village in South Lakeland district, Cumbria, England.