Cantonian High School is an English-medium 11-18 community school maintained by Cardiff local authority. It is located in Fairwater and serves the surrounding area in the west of Cardiff, Wales. There are currently more than 800 pupils on roll and the school is continually growing. Although in the past it has often struggled, it has progressed significantly in recent years, and performed well in its most recent Estyn inspections, earning the title Cardiffs most improved school in Wales Online.