Jan Olav Olsen (born 29 September 1950 in Arendal) is a Norwegian politician for the Conservative Party.
He was elected to the Norwegian Parliament from Aust-Agder in 2001, but was not re-elected in 2005.
Olsen held various positions in Gjerstad municipality council from 1983 to 1999, serving as mayor from 1991 until 1999. From 1999 to 2001 he was a member of Aust-Agder county council.