Senator Cowan

Senator Cowan may refer to:


 * Edgar Cowan (1815–1885), U.S. Senator from Pennsylvania from 1861 to 1867
 * Jim Cowan (born 1942), Canadian Senator for Nova Scotia from 2005 to 2017
 * Mo Cowan (born 1969), U.S. Senator from Massachusetts in 2013
 * Thomas F. Cowan (1927–2010), New Jersey State Senate