John Augustus "Josh" Hartwell (September 27, 1869 – November 30, 1940) was an American football player and coach, military officer, and physician. Hartwell attended Yale University, where he played end for Walter Camp's Bulldogs football team from 1888 to 1891. In 1891, Hartwell was named an All-American for a season in which Yale was unbeaten, untied, unscored against, and later recognized as a national champion by a number of selectors.