James Morgan Bartow Bloodworth Jr., F.C.A.P. (February 21, 1925 – September 22, 2006) was an American physician, pathologist, and researcher on diabetes mellitus. He was born in Atlanta on February 21, 1925, to J. M. Bartow Bloodworth, Sr.—an attorney—and Elizabeth (née Dimmock) Bloodworth. Bloodworth died on September 22, 2006 in Madison, Wisconsin.