| Mount Morris Junior/Senior High School | |
| Address: | 30 Bonadonna Ave |
| Zipcode: | 14510 |
| Country: | United States |
| Superintendent: | Greg Bump |
| Principal: | Jesse Hamilton |
| Enrollment: | 228 (2021-2022) |
| Teaching Staff: | 27.43 |
| Ratio: | 8.31 |
| Campus: | Rural: Distant |
| Mascot: | Blue Devils |
| Colors: | Navy Blue and White |
| Yearbook: | The Heights |
Mount Morris Junior/Senior High School is a public high school located in Mount Morris, Livingston County, New York, U.S.A., and is the only high school operated by the Mount Morris Central School District.