Jeffrey William Colyer (born June 3, 1960) is an American surgeon and politician who served as the 47th governor of Kansas from January 31, 2018, to January 14, 2019. A member of the Republican Party, he was the 49th lieutenant governor of Kansas from 2011 to 2018. Colyer served in the Kansas House of Representatives from 2007 to 2009 and the Kansas Senate from 2009 to 2011. He assumed the governorship when Sam Brownback resigned to become United States Ambassador-at-Large for International Religious Freedom. Colyer ran for a full term as governor in 2018, but narrowly lost the Republican primary to Kansas secretary of state Kris Kobach, who in turn lost the general election to Democratic nominee Laura Kelly.