The American Community School Beirut, (Arabic: مدرسة الجالية الأميركية في بيروت‎), also known as ACS Beirut, is a private school located in Beirut, Lebanon, founded in 1905, traditionally attached to the American University of Beirut. As an independent coeducational institution, it offers education to students of all nationalities, ranging from preschool, students aged from 3 years, to high school grade 12 of the type K-12. It offers the International Baccalaureate and the Lebanese Baccalaureate programs as well as its own college prep program.