Åsen is a neighborhood in the borough of Sagene in Oslo, Norway. Part of the borough is in Nordre Aker.[1]
The neighbourhood is named after the old farm Åsen (Norse Ósin, from originally *Ásvin). The first element is áss m 'mountain ridge' (here referring to Grefsenåsen), the last element is vin f 'meadow'.
The name is often misunderstood as åsen, the finite form of ås (the modern Norwegian form of áss), and is then wrongly pronounced with accent 1 - but the correct pronunciation is with accent 2.