St. John's Hospital, or St. John's Medical Center, or similar, may refer to:
Belgium Old St. John's Hospital, Bruges
China St. John Hospital (Hong Kong), Cheung Chau, Hong Kong
India St. John's Medical College, Bangalore
Ireland St. John's Hospital, Limerick, County Limerick St. John's Hospital (Sligo), County Sligo St. John's Hospital (Enniscorthy), County Wexford
Israel Saint John Eye Hospital Group, Jerusalem
Portugal St John's Hospital (Hospital de São João), Porto
United Kingdom St John's Hospital, Livingston, Scotland St John's Hospital, Bracebridge Heath, Lincolnshire, England St John's Hospital, Bath, Somerset, England Hospital of St John and St Elizabeth, St John's Wood, London St John's Hospital, Stone, Buckinghamshire, England Hospital of St John Baptist without the Barrs, Lichfield, England
United States Saint John's Health Center, Santa Monica, California St. John's Episcopal Hospital South Shore, Queens, New York St. John's Hospital Camarillo, Camarillo, California St. John's Regional Medical Center (California), Oxnard, California St. John's Riverside Hospital, Yonkers, New York St. John's Hospital (Springfield, Illinois) Ascension St. John Hospital, Detroit, Michigan St. John's Hospital (Maplewood, Minnesota) St. John's Regional Medical Center (Missouri), Joplin, Missouri University Hospitals St. John Medical Center, Westlake, Ohio St. John Medical Center, Tulsa, Oklahoma St. John's Health, Jackson, Wyoming Defunct St. John's Episcopal Hospital, Brooklyn, New York St John's Queens (Elmhurst, Queens, NY), New York City. Closed in 2009