Steen1 is a Finnish rap musician. He originally chose Steen Christensen, the name of a Danish criminal, as his moniker, but changed it due to controversy. His lyrics tend to feature aggressive, anti-establishment social critique.

Most of his stories are based on real events that he has seen in his work as a social worker.As of 2011, he has released four full-length albums, Salaliittoteoria ("Conspiracy Theory"), Varasta pomolta ("Steal from the Boss"), Runoja kontrollihuoneesta ("Poems from the Control Room) and Jedin Paluu ("Return of the Jedi").

In 2007, he released collection Ajatusrikoksia ("Thought Crimes") featuring his older tracks that had previously been released as CD-Rs or singles.He ran for the Finnish parliament in the 2007 elections as an independant candidate for the Finnish Communist Party (SKP).