Maria Nicole Chappelle-Nadal is an American politician who served in the Missouri House of Representatives from the 86th district from 2019 to 2021. A Democrat from University City, Missouri, she represented district 14 in the Missouri Senate from 2011 to 2019. She previously served in the Missouri House of Representatives from district 72, a position which she held from 2005 to 2011. In 2010, Chappelle-Nadal was elected to the Missouri Senate to succeed fellow Democrat Rita Heard Days of St. Louis.