Keith Esau (born June 10, 1960) is an American politician who served as the Kansas State Representative for the 14th district from 2013 to 2019. A member of the Republican Party, his district covers the northern part of Olathe in Johnson County. In 2017, the American Conservative Union gave him a life time rating of 88%. He unsuccessfully sought the Republican nomination for Secretary of State of Kansas in 2018, placing fifth in a primary election that was won by Scott Schwab. He was succeeded in the state legislature by his wife, Charlotte Esau.