St. Mary's Academy may refer to:
Canada St. Mary's Academy (Winnipeg), Manitoba Saint Mary's Academy (New Brunswick), Edmundston
Dominica Saint Mary's Academy, Dominica
India St. Mary's Academy, Meerut, Uttar Pradesh
Philippines St. Mary's Academy of Caloocan City Saint Mary's Academy of Capiz St. Mary's Academy of Carmen St. Mary's Academy, Guagua, Pampanga St. Mary's Academy of Kidapawan St. Mary's College of Meycauayan, formerly known as St. Mary's Academy St. Mary's Academy of Pasay St. Mary's Academy of San Nicolas St. Mary's Academy of Santo Niño
United Kingdom St Mary's Catholic Academy, Blackpool, Lancashire, England St Mary's Academy, Bathgate, West Lothian, Scotland
United States
Schools St. Mary's Academy (Inglewood, California) St. Mary's Academy (Cherry Hills Village), Colorado Saint Mary's Academy and College, St. Marys, Kansas St. Mary's Academy (New Orleans), Louisiana St. Mary's Academy (Portland, Oregon) St. Mary Academy – Bay View, East Providence, Rhode Island
Historic sites St. Mary's Academy (Davenport, Iowa), listed on the National Register of Historic Places (NRHP) St. Mary's – St. Alphonsus Regional Catholic School, Glens Falls, New York, also known and NRHP-listed as St. Mary's Academy St. Mary's Academy (Devils Lake, North Dakota), NRHP-listed Saint Mary's Academy Building, Pittsburgh, Pennsylvania St. Mary's Academy Historic District (Monroe, Michigan), NRHP-listed St. Mary's Academy Historic District (Silver City, New Mexico), NRHP-listed in Grant County
See also St. Mary's School (disambiguation) Saint Mary's College (disambiguation) Saint Mary's University (disambiguation)