Lee A. Seamster (born September 14, 1888 – July 25, 1960) was a lawyer and politician from Northwest Arkansas. Passing the bar in 1913, Seamster practiced law in Bentonville, and represented the area in the Arkansas House of Representatives from 1919-1920, and served as mayor of Bentonville from 1921-1922, until he resigned to move to Fayetteville to open a law practice. Over the next two decades, Seamster practiced law and served as Chancery Judge of the 13th District for eighteen years before representing the Fayetteville area in the Arkansas House from 1947–1948. He was appointed to serve as Chief Justice of the Supreme Court of Arkansas from 1955 to 1956 by Governor Orval Faubus.