The 2010 Oklahoma gubernatorial election was held on November 2, 2010, to elect the governor of Oklahoma. Due to term limits established by the Oklahoma Constitution, incumbent Democratic governor Brad Henry could not seek re-election. The race had been hotly contested by both political parties, with several well-known Oklahomans announcing their candidacy up to two years before the election.
This was the first time a woman challenged another woman for the post of governor of Oklahoma. As both parties nominated female candidates (Jari Askins for the Democrats and Mary Fallin for the Republicans), both of whom had previously held the office of the lieutenant governor of Oklahoma, and as no third-party or write-in candidate qualified for the ballot, Oklahoma was guaranteed its first female governor.
In 2008, Republicans won majorities in both chambers of the state legislature for the first time ever; as they expanded these majorities in the 2010 elections and Fallin won the governorship, a Republican state government trifecta was established for the first time since statehood when Fallin was sworn in on January 10, 2011.
Askins carried only four counties: her home county of Stephens and neighboring Comanche, Cotton, and Jefferson. While Fallin won all other 73 counties (of which she flipped 70), her margins varied, ranging from narrow wins in much of Eastern Oklahoma to a 66-point victory in staunchly Republican Beaver County. As of 2026, this is the last Oklahoma gubernatorial race where the winner received more than 60% of votes.
Fallin was the first Republican to win Atoka County, Choctaw County, Coal County, Haskell County, Hughes County, Johnston County, Latimer County, LeFlore County, McCurtain County, Okfuskee County, Pittsburg County, and Pushmataha County in a gubernatorial election since Oklahoma statehood. Muskogee County and Sequoyah County voted Republican for the first time since 1907. Fallin was the first non-Democrat to win Tillman County, which had voted for the Democratic candidate for governor in each election since Oklahoma statehood, thus breaking a 103-year streak of voting Democratic.
Democratic primary
Declared
- Jari Askins, incumbent lieutenant governor of Oklahoma
- Drew Edmondson, incumbent attorney general of Oklahoma
Republican primary
Declared
- Randy Brogdon, state senator
- Mary Fallin, former lieutenant governor and current congresswoman for Oklahoma's 5th congressional district
- Robert Hubbard, business owner of Piedmont, Oklahoma's "Hubbard Ranch Supply"
- Roger L. Jackson, retired businessman, former president of the Oklahoma Office Machine Dealers Association (OOMDA)
Declined
- Mick Cornett, mayor of Oklahoma City
- J. C. Watts, former congressman from Oklahoma's 4th congressional district
General election
Results by county
Counties that flipped from Democratic to Republican
- Adair (largest city: Stilwell)
- Alfalfa (largest city: Cherokee)
- Atoka (largest city: Atoka)
- Beckham (largest city: Elk City)
- Blaine (largest city: Watonga)
- Bryan (largest city: Durant)
- Caddo (largest city: Anadarko)
- Canadian (largest city: Yukon)
- Carter (largest city: Ardmore)
- Cherokee (largest city: Tahlequah)
- Choctaw (largest city: Hugo)
- Cleveland (largest city: Norman)
- Coal (largest city: Coalgate)
- Craig (largest city: Vinita)
- Creek (largest city: Sapulpa)
- Custer (largest city: Weatherford)
- Delaware (largest city: Grove)
- Dewey (largest city: Seiling)
- Ellis (largest city: Shattuck)
- Garfield (largest city: Enid)
- Garvin (largest city: Pauls Valley)
- Grady (largest city: Chickasaw)
- Grant (largest city: Medford)
- Greer (largest city: Mangum)
- Harmon (largest city: Hollis)
- Harper (largest city: Laverne)
- Haskell (largest city: Stigler)
- Hughes (largest city: Holdenville)
- Jackson (largest city: Altus)
- Johnston (largest city: Tishomingo)
- Kay (largest city: Ponca City)
- Kingfisher (largest city: Kingfisher)
- Kiowa (largest city: Hobart)
- Latimer (largest city: Wilburton)
- Le Flore (largest city: Poteau)
- Lincoln (largest city: Chandler)
- Logan (largest city: Guthrie)
- Love (largest city: Marietta)
- Major (largest city: Fairview)
- Marshall (largest city: Madill)
- Mayes (largest city: Pryor Creek)
- McClain (largest city: Newcastle)
- McCurtain (largest city: Idabel)
- McIntosh (largest city: Checotah)
- Murray (largest city: Sulphur)
- Muskogee (largest city: Muskogee)
- Noble (largest city: Perry)
- Nowata (largest city: Nowata)
- Okfuskee (largest city: Okemah)
- Oklahoma (largest city: Oklahoma City)
- Okmulgee (largest city: Okmulgee)
- Osage (largest city: Hominy)
- Ottawa (largest city: Miami)
- Pawnee (largest city: Cleveland)
- Payne (largest city: Stillwater)
- Pittsburg (largest city: McAlester)
- Pontotoc (largest city: Ada)
- Pottawatomie (largest city: Shawnee)
- Pushmataha (largest city: Antlers)
- Roger Mills (largest city: Cheyenne)
- Rogers (largest city: Claremore)
- Seminole (largest city: Seminole)
- Sequoyah (largest city: Sallisaw)
- Tillman (largest city: Frederick)
- Tulsa (largest city: Tulsa)
- Wagoner (largest city: Coewta)
- Washington (largest city: Bartlesville)
- Washita (largest city: New Cordell)
- Woods (largest city: Alva)
- Woodward (largest city: Woodward)