Old Mill High School
| Old Mill High School | |
|---|---|
| Location | |
600 Patriot Lane Millersville, Maryland United States | |
| Coordinates | 39°7′22″N 76°37′42″W / 39.12278°N 76.62833°W |
| Information | |
| Type | Public, Secondary |
| Established | 1975 |
| School district | Anne Arundel County Public Schools |
| Principal | Christian Thomas |
| Grades | 9-12 |
| Enrollment | 2,445 (2023-2024 school year) |
| Campus type | Large suburb |
| Color(s) | Red, White, and Blue |
| Mascot | Patriot |
| Rival | Severn Run High |
| Website | AACPS website, School website |
Old Mill High School is a public high school in Millersville, Maryland, serving students in grades 9 through 12. It was occupied in 1975 and is administered by Anne Arundel County Public Schools (AACPS). The school was built to alleviate overcrowding at Arundel and Severna Park High Schools. The school was built with no walls or ceilings in some classrooms, but later had walls installed. Along with Annapolis High School and Meade Senior High School, Old Mill Senior High is one of the three IB World Schools in AACPS. The school mascot is, "The Patriot". In 2024 the school spilt with half of its population going to Severn Run High School.
The school building also houses Old Mill Middle School North which is part of the Severn Run Cluster.