Augustus W. Stinchfield (December 21, 1842 – March 15, 1917) was an American physician and one of the co-founders—along with Drs.

Stinchfield was born in Phillips, Maine and received his early education in the nearby town of Strong.

William Worrall Mayo was retiring and wanted a mid-career physician to balance the growing private practice.

While the Mayo brothers excelled in surgery, Stinchfield was well qualified to handle the non-surgical duties of the practice.

When the remaining partners signed the transfer papers, this gift insured the long-term survival, development and growth of the Mayo Clinic.