Ørjan Berg (born August 20, 1968 in Bodø) is a former Norwegian football midfielder, who most recently played for Rosenborg. He retired at the end of the 2006 season, and has previously played for F.K. Bodø/Glimt, FC Wettingen, 1860 Munich, and FC Basel. Ørjan is the brother of Bodø/Glimt player Runar Berg, and the son of legendary Bodø/Glimt midfielder and playmaker Harald Berg.
He is married and has two sons, Patrick and Marius.
After two seasons at Rosenborg, Berg was sold to Swiss club Wettingen FC in 1990, where he played for one season before moving to 1860 Munich and FC Basel before returning to his home club Bodø/Glimt in 1996.
In Bodø/Glimt, now back in the top division, Berg played for three seasons losing a cup final against Tromsø I.L. in 1996. In 1999 Rosenborg needed to strengthen its team to play in the UEFA Champions League, and Berg went on loan to Rosenborg. Later that year he was traded to Rosenborg.
In mid season 2006, he returned to his home town Bodø, trying to recover from injuries which has plagued him in the last (almost) two years. If he recovered, he said he would join Rosenborg again when preseason starts at the beginning of 2007 - which would have been his last season in the famous white and black shirt according to his contract. However, it became increasingly clear that his injury would never be completely healed, and he decided to terminate his contract a year early. His official farewell ceremony took place in the recess of the Rosenborg - Viking match on October 29th.