Castle Rushen High School is a co-educational secondary state school located in Castletown on the Isle of Man for pupils from the south of the island.

There is one private (fee-paying) school, King William's College.

The pupils of the school are grouped into four houses named after headlands or rocks in the south of the island: Bradda, Carrick, Langness and Scarlett.

Houses compete in a number of events in the year ranging from sporting events such as inter-house rugby, cross country and netball to more academic competition in the form of a merit award system for good work.

This Isle of Man school-related article is a stub.