Mary Fallin, American businesswoman and politician, 27th Governor of Oklahoma

Mary Newt Fallin is an American politician and real estate broker who served as the 27th governor of Oklahoma from 2011 to 2019. A member of the Republican Party, she previously served as the U.S. representative for Oklahoma's 5th congressional district from 2007 to 2011, and as lieutenant governor from 1995 to 2007. As of 2025, Fallin remains the only woman to have served as governor of Oklahoma.

The governor of Oklahoma is the head of government of the U.S. state of Oklahoma. Under the Oklahoma Constitution, the governor serves as the head of the Oklahoma executive branch, of the government of Oklahoma. The governor is the ex officio commander-in-chief of the Oklahoma National Guard when not called into federal use. Despite being an executive branch official, the governor also holds legislative and judicial powers. The governor's responsibilities include making yearly "State of the State" addresses to the Oklahoma Legislature, submitting the annual state budget, ensuring that state laws are enforced, and that the peace is preserved. The governor's term is four years in length.