Southbank International School is a co-educational independent school located in the City of Westminster, Kensington and Hampstead, London, England. It is an international school for 3 to 18-year olds, from early childhood to Key Stage 5. It has three campuses serving the educational needs of the international community in central London and surrounding areas. It is an International Baccalaureate World School, authorised to deliver all three of the IB Programmes.