| Greenbrier High School | |
| Address: | 126 Cuniff Street |
| City: | Greenbrier |
| State: | Tennessee |
| Zipcode: | 37073 |
| Country: | United States |
| Pushpin Map: | Tennessee#USA |
| District: | Robertson County Schools |
| Principal: | Katie Osborne[1] |
| Faculty: | 52.10 (on FTE basis) |
| Enrollment: | 812 (2022–23)[2] |
| Type: | Public |
| Us Nces School Id: | 470360001497 |
| Grades: | 9–12 |
| Nickname: | Bobcats |
| Colors: | Forest green and white [3] |
| Homepage: | GHS |
Greenbrier High School is a public high school located in Greenbrier, Tennessee, United States. It is part of Robertson County Schools. The school educates 842 students in grades 9 to 12.
On March 6, 2017, three Robertson County Schools, Springfield High School, Robertson County Alternative School, and Greenbrier High School, received bomb threats. Students were evacuated and all three schools were searched, however no bombs were found. The caller was identified as Austin Holliman, an 18-year-old, who attended the Robertson County Alternative School but previously attended Greenbrier High School. He was later booked into the Robertson County Jail.[4]