Mount St. Mary's

Mount Saint Mary College

• Mount Saint Mary College, a private college in Newburgh, New York
• Mount Saint Mary College (New Hampshire), a defunct private college for women, in Hooksett, New Hampshire (closed 1978)

Mount St. Mary's University

• Mount St. Mary's University, a private liberal arts university in Emmitsburg, Maryland
• Mount Saint Mary's University, Los Angeles, a private liberal arts college, primarily for women, in Los Angeles

Mount Saint Mary Academy

• Mount Saint Mary Academy (Kenmore, New York)
• Mount St. Mary Academy (Little Rock, Arkansas)
• Mount St. Mary Academy, Watchung, New Jersey
• Mount Saint Mary's Convent and Academy, Grass Valley, California

Mount St. Mary's School

• Mount St Mary's School, India, in New Delhi, co-educational school run by the Brothers of St Patrick
• Mount St Mary's School (New Delhi), the same school as above
• Mount St. Mary High School (Oklahoma), a private high school in Oklahoma City, United States
• Mount St Mary's Catholic High School, Leeds, United Kingdom

Mount St Mary's College

• Mount St Mary's College, a private coeducational boarding school, at Spinkhill, Derbyshire, near Sheffield, England
• Mount Saint Mary's College Namagunga, an all-girl boarding school near Lugazi, Uganda

• Mount St. Mary's Seminary of the West, a seminary and a division of the Athenaeum of Ohio, in Cincinnati
• Mount St. Mary's Seminary and College, now part of Mount St. Mary's University, in Emmitsburg, Maryland

• Mount Saint Mary's Hospital in Lewiston, New York, United States
• St Mary's Church, Walsall, also known as St Mary's the Mount Church, West Midlands, United Kingdom
• Mount St Mary's Church, Leeds, West Yorkshire, United Kingdom
• St. Mary's Mount, an alternate name for the eastern spires of Mission Ridge (British Columbia), Canada