| Willunga High School | |
| Motto: | On The Wave Of Success |
| Established: | 1960 |
| Type: | Public school |
| Grades: | 7–13 |
| Principal: | Anthony Van Ruiten |
| Staff: | 101 |
| Students: | 935[1] |
| Colors: | Dark navy and white |
| Mascot: | Stumpy (female maned duck) |
| Location: | 239 Main Road Willunga SA 5172 |
| Country: | AUS |
| Coordinates: | -35.2667°N 171°W |
Willunga High School is a government high school in the town of Willunga, South Australia, located about south of the Adelaide city centre.