NIST International School (Thai: โรงเรียนนานาชาตินิสท์) is an international school located in Watthana District, Bangkok, Thailand. It was established in 1992 with support and guidance from the Bangkok-based branch of the United Nations. A full International Baccalaureate (IB) World School, NIST welcomes more than 1,600 students of over 50 nationalities. As one of the only not-for-profit international schools in Thailand, it is governed by the parent-elected NIST International School Foundation.