Horizon Private School – American (Khalifa City) is a private, co-educational American-curriculum school in Khalifa City A, Abu Dhabi, founded in 2008 and operated by Alephya Education. It teaches the US Common Core with NGSS science from Pre-KG to Grade 12 (ages 3-18), embedding Arabic and French alongside English from KG1, and leads to a Cognia-accredited US High School Diploma with 13 Advanced Placement courses, a mandatory Grade 10 PSAT and an on-site SAT centre, plus a scholarship partnership with University of Balamand Dubai. Serving around 1,700 students from roughly 60 nationalities — about 65% Emirati — it is rated Good by ADEK (October-2025 cycle, down from Very Good in the three prior cycles) and ranked #1 Best American School in Abu Dhabi on the WhichSchoolAdvisor parent survey (4.3/5). The campus offers chemistry and physics labs, innovation spaces, a football field, an indoor swimming pool, an indoor basketball court, three KG playgrounds and two music rooms.