St. John's Academy may refer to:
Canada St. John's Academy, Shawnigan Lake, British Columbia
Philippines
St. John's Academy of Bataan, Dinalupihan, Bataan St. John's Academy, Onse, San Juan, Metro Manila
United Kingdom St. John's Academy, an 18th-century school, now St John's House Museum, Warwick St. John's Academy, in Marlborough, Wiltshire St John's Academy, Perth, Scotland
United States St. John's Military Academy, now part of Chaminade College Preparatory School in Chatsworth, Los Angeles, California St. John's Academy, associated with Church of St. John the Baptist in Burlington, Iowa A former part of St. John's College in Winfield, Kansas St. John's Academy, in Hillsdale, New Jersey
A former name of The Manlius School, Manlius, New York
A school in the former St. James Basilica in Jamestown, North Dakota A former name of Seton Catholic High School in Pittston, Pennsylvania A former school in Darlington, South Carolina St. John's Academy (Alexandria, Virginia)
St. John's Northwestern Military Academy, Delafield, Wisconsin
See also Saint John's College (disambiguation) St. John's High School (disambiguation) St. John's School (disambiguation)