Alna
| Bydel Alna | |
|---|---|
| Country | Norway | 
| City | Oslo | 
| District | Grorud Valley | 
| Area | |
|  • Total | 13.75 km2 (5.31 sq mi) | 
| Population  (2020) | |
|  • Total | 49,801 | 
| • Density | 3,622/km2 (9,380/sq mi) | 
| Time zone | UTC+1 (CET) | 
| • Summer (DST) | UTC+2 (CEST) | 
| ISO 3166 code | NO-030112 | 
| Website | oslo.kommune.no/politikk-og-administrasjon/bydeler/bydel-alna | 
Alna is a borough of the city of Oslo, Norway. It is named after the River Alna, which flows through it.
The borough consists of the following neighborhoods:
In the Oslo borough reform in 2004, the borough Helsfyr-Sinsen was removed, and the neighborhoods Teisen and Bryn were included in Alna.