John Dowd may refer to:
John M. Dowd (born 1941), American attorney John Dowd (politician) (born 1940), former opposition leader in New South Wales John Dowd (motocross) (born 1965), professional motocross racer John Albert Dowd (1876–1932), politician in Saskatchewan, Canada John H. Dowd (marketer, 1922–2004), advertising executive John Dowd (baseball) (1891–1981), American baseball player Johnny Dowd (born 1948), American country musician John F. Dowd (1894–1961), American politician, sheriff of Suffolk County, Massachusetts
See also Jon Dowd, fictional baseball player used as a replacement for Barry Bonds in MVP Baseball 2004 and 2005, due to Bonds leaving the MLB players association