| Buller High School | |
| Motto: | Latin: Tibi seris, tibi metis |
| Motto Translation: | As you sow, so you shall reap |
| Type: | Secondary (Year 9–13) |
| Address: | Derby Street, Westport |
| Chairperson: | Glenn Irving |
| Principal: | Andrew Basher |
| Roll: | |
| Decile: | 3 |
| Moe: | 301 |
Buller High School is a secondary school in the town of Westport, New Zealand. The school has a roll of over 360 students, all Year 9 to Year 13. As well as students from Westport, the school has a large number of students from nearby towns that do not have high schools of their own, such as Waimangaroa, Granity, and Seddonville. The school was founded in 1922, although has ties to earlier secondary schooling in the Buller district.