Greenbrier High School (GHS) is a comprehensive public high school serving more than 600 students in grades ten through twelve in Greenbrier, Arkansas, United States. It is one of six public high schools in Faulkner County and is the sole high school administered by the Greenbrier School District. Greenbrier High School is the home of the pilot program that formed the national EAST Initiative.
Many students who graduate from GHS register to vote for the Republican party.