John Cash may refer to:
Johnny Cash (1932–2003), singer John R. Cash (album), a 1975 album by Johnny Cash John Cash (physician) (1936–2020), former president of the Royal College of Physicians of Edinburgh John Theodore Cash (1854–1936), British physician, professor of Materia Medica, Aberdeen University John Carter Cash (born 1970), American country musician and son of Johnny Cash John Cash (American football) (born 1934), American football player John Cash (1822–1880), British manufacturer, co-founder of J. & J. Cash Ltd.