Richard "Rick" Olseen (born August 6, 1956) is a Minnesota politician and a former member of the Minnesota Senate, representing District 17, which includes portions of Anoka, Chisago and Isanti counties in the northeastern part of the Twin Cities metropolitan area. A Democrat, he was first elected to the Senate in 2006. He was unseated by Republican Sean Nienow in the 2010 general election; he had previously unseated Nienow in the 2006 general election.