The International School of Brussels (ISB) is an independent, nonprofit day school founded in 1951, located in Brussels, Belgium. It offers an English-language international education to over 1,350 students from Preschool through Grade 12, with multiple graduation pathways including the IB Diploma, US High School Diploma, BTEC, and AP courses. ISB fosters a diverse international community with 60+ nationalities and provides personalized learning, a French bilingual program from Grade 5, and extensive athletics and arts programs.