Michael Okerlund Leavitt (born February 11, 1951 in Cedar City, Utah) is an American politician. He served as the Secretary of Health and Human Services from 2005 to 2009.

Leavitt graduated with a bachelor's degree in economics and business from Southern Utah University and married Jacalyn Smith. They have five children.

Leavitt is a member of The Church of Jesus Christ of Latter-day Saints.