Joseph Benton Donley (October 10, 1838 – January 23, 1917) was a Republican member of the U.S. House of Representatives from Pennsylvania.

Joseph Benton Donley was born in Mount Morris, Pennsylvania.

He entered the Union Army as a captain in the 83rd Illinois Volunteer Infantry Regiment, in 1862 and served throughout the war.

He was admitted to the bar in 1867 and commenced practice in Waynesburg, Pennsylvania.

This article incorporates public domain material from the Biographical Directory of the United States Congress