| Address: | 84 School Street |
| City: | Unity |
| State: | Maine |
| Country: | United States |
| Type: | Public |
| Grades: | PreK–12 |
| Students: | 1,083 |
| Teachers: | 111.96 |
| Staff: | 166.7 |
| Ratio: | 9.67 |
| Mount View High School | |
| Address: | 577 Mount View Road |
| Zipcode: | 04986 |
| Country: | United States |
| District: | MSAD 3 |
| Superintendent: | Charles Brown |
| Principal: | Tom Gray |
| Ceeb: | 201008 |
| Average Class Size: | 23 |
| Gender: | Male and female |
| Type: | Public |
| Established: | 1964, 2009 (new complex) |
| Enrollment: | 420 (2016-17)[1] |
| Grades: | 9-12 |
| Campus Size: | Medium |
| Hours In Day: | 8-3 |
| Fight Song: | Mount View Pride |
| Accreditation: | NEASC |
| Mascot: | Manny the Mustang |
| Sports: | Football, soccer, field hockey, indoor soccer, softball, baseball, golf, indoor track, outdoor track, basketball, cheerleading, hackeysack (footbag), clout team |
| Team Name: | Mustangs |
| Colors: | Green and white |
| Newspaper: | Voicing the View |
Maine School Administrative District 3 (MSAD 3) is an operating school district within Maine, covering the towns of Brooks, Freedom, Jackson, Knox, Liberty, Monroe, Montville, Thorndike, Troy, Unity and Waldo.[2] MSAU District 3 students attend Mount View High School in Thorndike.