Kim McMillan (née Ambrester, born c. 1963) is an American Democratic politician who was mayor of Clarksville, Tennessee from 2011 until Joe Pitts was sworn in on January 2, 2019. McMillan was also the first woman in Tennessee history to be elected Majority Leader of the Tennessee House of Representatives. She was a candidate in the 2010 Tennessee gubernatorial election, but dropped out to run for mayor of Clarksville.