Knut Ragnar Mikkelsen (born 18 March 1951) is a Norwegian police chief.
He was born in Lunde, Telemark, and graduated with the cand.jur. degree. He was a police superintendent in the Oslo police from 1981 to 1988, and worked as police inspector from 1990 to 1997.[1] From 1 November to 31 December 1994 he was acting chief of police of Oslo.[2] He was the chief of police of Drammen from 1997 to 2001, and in 2001 he became assisting director of the National Police Directorate.[1]