Slemdal is a neighborhood in the borough of Vestre Aker in Oslo, Norway.
The neighborhood lies south of Vettakollen, and was built up from the 1890s. It is served by the Oslo Metro station Slemdal. The local sports team is IL Heming.
Coordinates: 59°57′N 10°42′E / 59.950°N 10.700°E / 59.950; 10.700