| Washington High School | |
| Streetaddress: | 400 South Elm Street |
| City: | Washington Court House |
| State: | Ohio |
| County: | (Fayette County) |
| Zipcode: | 43160 |
| Country: | United States |
| Coordinates: | 39.5431°N -83.4236°W |
| District: | Washington Court House City School District |
| Superintendent: | Tom Bailey |
| Principal: | Tracey Rose |
| Faculty: | 41.5 (FTE) |
| Type: | Public, Coeducational high school |
| Grades: | 912 |
| Conference: | Frontier Athletic Conference |
| Fightsong: | Go Washington |
| Motto: | Engage, Inspire, Grow |
| Accreditation: | North Central Association of Colleges and Schools[1] |
| Rival: | Miami Trace |
| Mascot: | Blue Lion |
| Team Name: | Blue Lions[2] |
| Yearbook: | Sunburst |
| Enrollment: | 600 (201920)[3] |
| Ratio: | 14.46 |
Washington High School (also known as Washington Court House) is a public high school located in Washington Court House, Ohio in Fayette County, United States.
The former high school was located on Willard Street on the eastern side of town. Originally, the current middle school was the town's high school, but in the district's late 1960s expansion, the current high school was built. Only one high school exists in the Washington Court House City School District.
Washington Senior High has approximately 50 staff members and approximately 600 students in grades 912.