John McDermott may refer to: John McDermott (heavyweight boxer) (born 1980), English boxer John McDermott (featherweight boxer), Scottish boxer John McDermott (English footballer) (born 1969), former Grimsby Town footballer John McDermott (Gaelic footballer), former Meath Gaelic footballer John McDermott (director) (1893–1946), American film director and screenwriter John McDermott (Australian footballer) (1872–1925), Australian rules footballer John McDermott (golfer) (1891–1971), American golfer John McDermott (American artist) (1919–1977), American illustrator and author John McDermott (runner) (1880–1948), American marathoner John McDermott (singer) (born 1955), Scottish-Canadian singer John F. McDermott, American psychiatrist John J. McDermott (philosopher) (1932–2018), distinguished professor at Texas A&M University John McDermott (Scottish artist) (born 1957), Scottish artist and veteran affairs activist