Main Page | See live article | Alphabetical index This article is about Castletown on the Isle of Man. See also Castletown, Ireland and Castletown, Caithness Castletown is a town in the Isle of Man. It is the former capital of the island. Notable buildings in the town include Castle Rushen and the Old House of Keys. This article is a stub. You can help Wikipedia by fixing it. This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License.