| Millersport Jr./Sr. High School | |
| Streetaddress: | 11850 Lancaster Street |
| City: | Millersport |
| State: | Ohio |
| County: | (Fairfield County) |
| Zipcode: | 43046 |
| Country: | USA |
| Coordinates: | 39.8936°N -82.5333°W |
| Type: | Public high school |
| Grades: | 7-12 |
| Conference: | Mid-State League |
| Song: | Alma Mater |
| Fightsong: | Victory March |
| Team Name: | Lakers[1] |
| Enrollment: | 236 (2016-17)[2] |
| Homepage: | http://www.walnuttsd.org/hs/ |
Millersport Jr./Sr. High School is a public high school in Millersport, Ohio, United States. It is the only high school in the Walnut Township Local School District. The school's nickname is the Lakers.