The National Orthodox School - Shmeisani (NOS) (in Arabic: المدرسة الوطنية الأرثوذكسية - الشميساني‎) is a school in Amman, Jordan. NOS is a private, non-profit, co-educational, day school in Amman, Jordan, that caters to students from diverse religious and socio-economic backgrounds, providing bilingual (Arabic and English) education through two educational streams: national and international. NOS was founded by – and operates under the umbrella of – the Orthodox Educational Society (OES) (in Arabic:جمعية الثقافة والتعليم الأرثوذكسية), a not-for-profit, charitable, Christian welfare organization which has among its aims the establishment of schools and other educational institutions throughout Jordan. NOS boasts a strong sense of nationalism and familial bonding between students of different religious, cultural and socio-economic backgrounds as part of one, large, cohesive community.