Pleasant Thomas Chapman (October 8, 1854 – January 31, 1931) was a U.S. Representative from Illinois. Born on a farm near Vienna, Illinois, Chapman attended the public schools, and then went to McKendree College, in Lebanon, Illinois. Chapman graduated from McKendree in June, 1876. He taught school while studying law, and served as superintendent of public schools of Johnson County from 1877 to 1882. He was admitted to the bar at Mount Vernon, Illinois, in 1878 and commenced practice in Vienna, Illinois. He died in Vienna on January 31, 1931, and was interred in Vienna's Fraternal Cemetery.