| Ashbrook High School | |
| Ceeb: | 341445 |
| Principal: | Matt Rikard |
| Address: | 2222 S. New Hope Rd |
| Zipcode: | 28054 |
| Country: | United States |
| Coordinates: | 35.2439°N -81.1272°W |
| Staff: | 115[1] |
| Enrollment: | 1,431 (2015 - 16)[2] |
| Conference: | Big South (3A) |
| Teamname: | Green Wave |
| Mascot: | Mighty Green Wave |
| Fightsong: | "On Gastonia" |
| Colors: | Kelly green and white |
| Feeder Schools: | W.P. Grier, Cramerton, Holbrook |
| Pushpin Map: | North Carolina#USA |
Ashbrook High School is a public high school in the Gaston County Schools public school district located in Gastonia, North Carolina. The school was the result of the merger of two former senior high schools, Holbrook Senior High and Ashley Senior High. The first class graduated in 1971. Its attendance range covers most of the central and eastern portions of the City of Gastonia, as well as the towns of Ranlo and Lowell, and the community of Springdale.
Ashbrook High School last won the North Carolina State Football Championship in 2002 as well as the Baseball State Championship in 2003. In 2015, the Ashbrook men's basketball team made it to the 3A state championship basketball game.