John Sargent Pillsbury (July 29, 1828, Sutton, New Hampshire – October 18, 1901, Minneapolis, Minnesota) was an American politician and businessman. He served as the 8th Governor of Minnesota from January 7, 1876 to January 10, 1882. He also served as a Regent of the University of Minnesota, and has become known as "The Father of the University." He was a Republican.

He married Mahala Fisk on November 3, 1856.