Stuart William "Tack" Harrington (April 20, 1889 – March 1975) was an American physician and surgeon, and college football player and coach.
While at UPA, he played 3 years of varsity football and was named an All-American halfback in 1912 by The Philadelphia Press.
Eventually Harrington developed an international reputation in the diagnosis and treatment of diaphragmatic hernias and mediastinal tumors.
He worked with anesthesiologist John Lundy to develop early methods of intubation and anesthesia for open chest cases.
He and his wife, Gertrude, enjoyed automobile trips around the U.S. until Harrington gradually lost his eyesight.