| Foss Upper Secondary School | |
| Native Name: | Foss videregående skole |
| Streetaddress: | Steenstrups gate 20 |
| City: | Oslo |
| Country: | Norway |
| Coordinates: | 59.9272°N 10.7558°W |
| Principal: | Elisabeth Ringdal |
| Classes Offered: | General education Music |
| Schooltype: | Public secondary school |
| Grades: | 11–13 |
| Age Range: | 16–19 |
| Language: | Norwegian English |
| Campus: | Urban |
| Founded: | 1900 |
| Homepage: | https://www.foss.vgs.no |
Foss Upper Secondary School is an upper secondary school in Oslo, Norway. The school was founded in 1900.