Allen T. Treadway (September 16, 1867 - February 16, 1947) was a Republican member of the United States House of Representatives from March 4, 1913 until January 3, 1945. Treadway represented Massachusetts' first congressional district for sixteen consecutive terms.
Treadway was born in Stockbridge, Massachusetts, and graduated from Amherst College in 1886. He served in Massachusetts' House of Representatives in 1904, and in the Massachusetts Senate from 1908 to 1911. He is buried in Stockbridge Cemetery, in his home town of Stockbridge.