The Okinawa Institute of Science and Technology Graduate University (沖縄科学技術大学院大学, Okinawa Kagaku Gijutsu Daigakuin Daigaku?, OIST) is an interdisciplinary graduate school located in Onna, Okinawa Prefecture, Japan. The school offers a 5-year PhD program in Science. Over half of the faculty and students are recruited from outside Japan, and all education and research is conducted entirely in English.