Derek Joel Lewis (born October 31, 1986) is an American politician who has served as a Republican member of the Kentucky House of Representatives from Kentucky's 90th House district since January 2019. His district includes Clay and Leslie counties as well as part of Laurel County.
Lewis was born in London, Kentucky. He earned a Bachelor of Science in accounting and communication arts from the University of the Cumberlands and a Master of Business Administration from Western Kentucky University.
He owns numerous small businesses such as a handyman service, pharmacy, and residential real estate.
He is a Baptist.
On April 16, 2020, two hours after the adjournment of the 2020 Kentucky General Assembly, Lewis was arrested and charged with driving under the influence. He was found in a ditch, and appeared to be intoxicated. The trial was originally scheduled for September 23, 2020; after being postponed three times, it was scheduled for May 19, 2021. Lewis was found not guilty, with a key part of his defense being a 2021 Kentucky Supreme Court ruling decided that Lewis' refusal to submit to a blood test could not be presented by prosecutors as evidence of guilt.