Parry Wayne Humphreys (1778 – February 12, 1839) was an American attorney, judge, and politician who represented Tennessee in the United States House of Representatives. After serving one term in the House, he later served eighteen years as a judge on the state judicial circuit. About 1836 Humphreys moved to Hernando, Mississippi, where he worked in banking for the remainder of his life. When established in 1809, Humphreys County, Tennessee was named for the judge. He had served on the Supreme Court of Tennessee from 1807 through 1809.