| Mark T. Sheehan High School | |
|---|---|
| Type | Public |
| Principal | Rosemary Duthie |
| Faculty | 80 |
| Students | 991 |
| Grades | 9-12 |
| Location | Wallingford, Connecticut, United States |
| Colors | Maroon and Gold |
| Mascot | Titans |
| Website | [1] |
Mark T. Sheehan High School is a public high school located at 142 Hope Hill Road, Wallingford, Connecticut. Its opposite, Lyman Hall High School and it are the two high schools within the Wallingford School System along with two middle schools and eight elementary schools. The current principal is Rosemary Duthie, and the assistant principals are James Francese and Todd Snyder.