Kjell Kosberg (born 8 April 1953) is a Norwegian architect. He established Kosbergs Arkitektkontor in Molde in 1986. He established an office in Oslo in 1994, which was later merged with the Molde office. He has designed a large number of buildings in Molde, including Teateret Vårt, Aker Stadion (1998), Rica Seilet Hotel (2002), Bjørnsonhuset (2002), as well as Sør Arena, Briskeby Arena and Quality Oslo Airport Hotel, among others.