| Martins Ferry High School | |
| Address: | 5000 Ayers-Limestone Road |
| City: | Martins Ferry |
| State: | Ohio |
| Zipcode: | 43943 |
| Country: | USA |
| District: | Martins Ferry City School District |
| Superintendent: | Jim Fogle |
| Type: | Public high school |
| Grades: | 9-12 |
| Campus Type: | Small Suburb[1] |
| Athletics Conference: | Buckeye 8 Athletic League Ohio Valley Athletic Conference |
| Rival: | Bellaire High School and Saint Clairsville High School |
| Team Name: | Purple Riders[2] |
| Yearbook: | The Ferrian |
| Enrollment: | 397 (2022-23)[3] |
Martins Ferry High School is a public high school in Martins Ferry, Ohio, United States. It is the only high school in the Martins Ferry City School District. Athletic teams compete as the Martins Ferry Purple Riders in the Ohio High School Athletic Association as a member of the Buckeye 8 Athletic League as well as the Ohio Valley Athletic Conference.
The Martins Ferry City School District has median household income of $23,960, thus making the school eligible for a Title I program, including access to state and federal assistance to help low-income and at risk students. The head school administrator, Joe Mamone, oversees the school's staff, including thirty full-time "equivalent" teachers serving the student body with an average class size of 17.8. The majority of students enrolled are White, making up about eighty-three percent of all students.