Ruamrudee International School is an international school in Min Buri District, Bangkok, Thailand. It is an international school for students in pre-school - grade 12 incorporated under the laws of the Kingdom of Thailand as a non-profit organization. Founded in 1957 by the Redemptorist Fathers of Thailand, RIS serves a population of 1,400 students from around the world. Other campuses include Ruamrudee International School Early Years Campus and Ruamrudee International School Ratchapruek Campus.

Min Buri is one of the 50 districts (khet) of Bangkok, Thailand. It is bounded by other Bangkok districts : Khlong Sam Wa, Nong Chok, Lat Krabang, Saphan Sung, and Khan Na Yao. Min Buri is the fifth largest district in Bangkok.