Octagonal Schoolhouse
- Birmingham Friends Octagonal School
- Charter Oak Schoolhouse
- Dryden District School No. 5
- Hood Octagonal School
- List of octagonal buildings and structures in the United States
- Modern Times School
- Octagon Stone Schoolhouse
- Octagonal Schoolhouse (Cowgill's Corner, Delaware)
- Octagonal Schoolhouse (Essex, New York)
- Sheldon Jackson School
- Sodom Schoolhouse
- Watkins Woolen Mill State Park and State Historic Site
- Wrightstown Octagonal Schoolhouse