John Wesley Langley (January 14, 1868 – January 17, 1932) was a U.S. Representative from Kentucky, husband of Katherine Gudger Langley. Born in Floyd County, Kentucky, Langley attended the common schools and then taught school for three years. He attended the law department of the National, Georgetown, and Columbian (now George Washington) Universities in Washington, D.C., for an aggregate period of eight years. John Langley died on January 17, 1932, from pneumonia. He was interred in Floyd County, Kentucky.