| Monessen High School | |
| Type: | Public high school |
| Grades: | 9-12 |
| District: | Monessen City School District |
| Address: | 1245 State Road |
| City: | Monessen |
| State: | Pennsylvania |
| Zipcode: | 15062 |
| Country: | United States |
| Enrollment: | 193 (2022–23)[1] |
| Faculty: | 15.49 FTE |
| Ratio: | 12.46 |
| Team Name: | Greyhounds |
| Colors: | Black White |
| Principal: | Eric Manko[2] |
| Yearbook: | The Greyhound |
Monessen High School is a high school located in Monessen, Pennsylvania. It is part of the Monessen City School District and is the only high school within the city of Monessen.
The school colors are black and white. The official high school mascot is the Greyhound, and their yearbook is similarly named The Greyhound.
In 2013 the Pennsylvania Department of Education published a list of schools that achieved the lowest 15 percentile of standardized test scores for the 2011-2012 school year, including Monessen High School.[3]