William Harrison Bissell (April 25, 1811 - March 18, 1860) was the governor of the U.S. state of Illinois from 1857 until his death. He was one of the first successful Republican Party candidates, winning the election of 1856 just two years after the founding of his party. Bissell was born in Hartwick, Otsego County, New York. He attended the public schools, attended Yale University, and was graduated from the Philadelphia Medical College in 1835. He moved to Monroe County, Illinois in 1837 where he taught school and practiced medicine until 1840.
From 1840 to 1842, Bissell was member of the Illinois house of representatives. He studied law, was admitted to the bar and commenced practice in Belleville, St. Clair County, Illinois. He was prosecuting attorney of St. Clair County in 1844. He served in the Mexican War as colonel of the Second Regiment, Illinois Volunteer Infantry.
Bissell was elected as a Democrat to the Thirty-first and Thirty-second Congresses and as an Independent Democrat to the Thirty-third Congress (March 4, 1849-March 3, 1855); chairman, Committee on Military Affairs (Thirty-second and Thirty-third Congresses). He was not a candidate for renomination in 1854.
Bissell was elected governor of Illinois in 1856 and served from January 12, 1857, until his death. He died in Springfield, Sangamon County, Illinois and was interred in Oak Ridge Cemetery.
Preceded by: Joel Aldrich Matteson Governor of Illinois 1857-1860 Succeeded by: John Wood Governors of Illinois Bond • Coles • Edwards • Reynolds • Ewing • Duncan • Carlin • Ford • French • Matteson • Bissell • Wood • Yates • Oglesby • Palmer • Oglesby • Beveridge • Cullom • Hamilton • Oglesby • Fifer • Altgeld • Tanner • Yates • Deneen • Dunne • Lowden • Small • Emmerson • Horner • Stelle • Green • Stevenson • Stratton • Kerner • Shapiro • Ogilvie • Walker • Thompson • Edgar • Ryan • Blagojevich
