More than 2 million passengers travel by international ferries each year. From Oslo, daily ferries go to Denmark and Germany. The ferries also transport a significant volume of cargo and goods. Color Line has two cruise ferries operating between Oslo and Kiel. It is Norway's largest shipping company for international passenger and cargo to and from Norway, and among Europe's leaders in short sea shipping.
DFDS has routes between Oslo and Copenhagen. It is one of the world's leading ferry companies with routes between many European ports.
| Color Line | Oslo - Kiel | Departures/ arrivals from Filipstad/Hjortnes | Dayly |
| DFDS Seaways | Oslo - København | Departures /arrivals from Vippetangen | Dayly |