John Edward Maggio (1952/1953 – 15 April 2017) was an American pharmacologist.
He earned undergraduate and advanced degrees in chemistry from Harvard University.[1] Maggio specialized in Alzheimer's disease and taught at the University of Cincinnati as Flor van Maanen Professor of Pharmacology and Experimental Therapeutics.[2] He died in Hyde Park, Cincinnati, of cancer on 15 April 2017, aged 64.[3][4]