| Alliance High School | |
| Streetaddress: | 400 Glamorgan Street |
| Zipcode: | 44601 |
| Country: | USA |
| Coordinates: | 40.9113°N -81.1114°W |
| Principal: | Kristy Woodford |
| Teaching Staff: | 52 (FTE) |
| Ceeb: | 360120 |
| Avg Class Size: | 25 |
| Ratio: | 18.62 |
| Campus Type: | Fringe Town[1] |
| Fightsong: | The Air Force Song ("Wild Blue Yonder") |
| Team Name: | Aviators |
| Colors: | Red and Columbia blue |
| Established: | 1868 |
| Enrollment: | 968[2] |
| Enrollment As Of: | 2021–22 |
Alliance High School is a public high school in Alliance, Ohio, United States. It is the only high school in the Alliance City School District. Athletic teams compete as the Alliance Aviators in the Ohio High School Athletic Association as a member of the Eastern Buckeye Conference.
Sports teams are known as the Aviators for the airplane production plants in the area during the 1920s. The school has its own A-7 Corsair II outside the building.