Mortensrud is a neighborhood in the borough of Søndre Nordstrand, in Oslo, Norway. The area has two primary schools, Mortensrud and Stenbråten, and a lower secondary school, Lofsrud. The area is served by the rapid transit station Mortensrud.

The area is notable for the modern award-winning church, Mortensrud church.

59°50′57″N 10°49′40″E / 59.84917°N 10.82778°E / 59.84917; 10.82778