The 2020 Missouri gubernatorial election was held on November 3, 2020, to elect the Governor of Missouri, concurrently with the 2020 U.S. presidential election, as well as elections to the United States Senate, elections to the United States House of Representatives, and various state and local elections. Incumbent Republican Governor Mike Parson ran for and was elected to a full term in office. Parson was elected as lieutenant governor in 2016 but became governor on June 1, 2018, after incumbent Eric Greitens resigned under threat of impeachment by the state legislature. Parson declared his bid for a full term on September 8, 2019. State Auditor Nicole Galloway, Missouri's only Democratic statewide officer and only female statewide officer, was the Democratic nominee and if elected, would have become Missouri's first female governor.

Michael Lynn Parson is an American politician serving as the 57th governor of Missouri since 2018. A member of the Republican Party, Parson assumed the governorship when Eric Greitens resigned, as he was lieutenant governor at the time. Parson served the remainder of Greitens's term and was elected governor in his own right in 2020.