Judith W. Baker (born April 10, 1960) is an American Democratic politician, small business owner, and educator from Missouri. She is a former member of the Missouri House of Representatives and a former Region VII Director for the United States Department of Health and Human Services. Baker was a candidate for Missouri State Treasurer in the 2016 election, but was defeated in the general election by Eric Schmitt. Baker ran for the Missouri Senate in the 2020 general election for Missouri's 19th Senate District. She lost to incumbent Caleb Rowden.