Ross University School of Medicine (RUSM) is a private international medical school located in Bridgetown, Barbados. Its main campus is now located in Barbados, and separate administrative bases are located in Iselin, New Jersey and Miramar, Florida in the United States. It is owned by Adtalem Global Education Inc., formerly DeVry Education Group, which purchased it in 2003.

The medical school was founded in 1978 as The University of Dominica School of Medicine by Robert Ross, an entrepreneur. At the time, it was housed in leased facilities at The Castaways Hotel, with an inaugural class of 11 students. In 1982, the University of Dominica School of Medicine formally changed its name to Ross University School of Medicine at the request of the government of Dominica.

In 1985 California state medical licensing officials (the Board of Medical Quality Assurance), began investigating RUSM, along with other medical schools located in the Caribbean.The officials released a report stating that RUSM at that time had nearly no admissions standards, and that the school was in the business of providing medical degrees to “everyone that wants one.” RUSM agreed to implement a number of changes recommended by the board and has since graduated over 11,000 practicing physicians.