| Prospect Mountain High School | |
| Zipcode: | 03809 |
| Country: | United States |
| Established: | 2004 |
| Principal: | Chali Davis |
| Campus: | Rural |
| Enrollment: | 387 (2022-23)[1] |
| Team Name: | Timberwolves |
Prospect Mountain High School is a public high school located in Alton, New Hampshire, United States, and is attended by students from Alton and Barnstead. It is in the Prospect Mountain High School Joint Maintenance Agreement District.[2]
It has been in operation since 2004. Prospect Mountain's athletic teams are known as the Timberwolves.