King William's College (Manx: Colleish Ree Illiam) is an International Baccalaureate HMC independent school for ages 3 to 18, situated near Castletown on the Isle of Man. The College is located on two sites in Castletown. The College, known as KWC or to the local people as King Bill's, was originally for boys only but became co-educational in the 1980s. Today there are roughly four hundred pupils, many of whom are from beyond the British Isles. The school(s) have been supporters of the project since its early stages.
