Thomas More Barrett (born April 30, 1981) is an American politician serving as a member of the Michigan Senate from the 24th district. A Republican, he previously served in the Michigan House of Representatives from 2015 to 2019. Prior to his election to the House, Barrett served as a liaison between the Michigan Department of Treasury and the office of the Governor of Michigan. Barrett was the Republican nominee in the 2022 election for Michigan's 7th congressional district, which he lost to incumbent Democrat Elissa Slotkin.