SS Constitutionen was a paddle steamer constructed in England and imported to Norway in 1826.

It was the first steamship of Norway, and was used for passenger traffic between Christiania and Bergen.

[1] A long-term captain of Constitutionen was Peter Severin Steenstrup, later founder and manager of the workshop Akers Mekaniske Verksted.

[3] An incident involving the ship happened in Christiania on 17 May 1829, on the Norwegian Constitution Day, when a crowd of people welcomed the arrival of the ship with greetings like Leve Constitutionen.

The commander of Akershus met the crowd with armed cavalry, the so-called Torgslaget, an event which eventually influenced the population's attitude to the Swedish authorities.