John Harvey Lowery (October 18, 1860 – September 25, 1941), was an American physician and philanthropist from Donaldsonville in Ascension Parish south of Baton Rouge, Louisiana. Born in Plaquemine in Iberville Parish, he was one of nineteen children of a bricklayer and a mid-wife. He studied medicine at the old Flint Goodridge Hospital, now Dillard University, and received his medical certificate from New Orleans University Medical College, now Tulane University, on February 21, 1894.