John Crowley may refer to: John Crowley (author) (born 1942), American author John Crowley (baseball) (1862–1896), American Major League catcher John Crowley (biotech executive) (born 1967), American biotechnology executive John Crowley (bishop) (born 1941), former bishop of Middlesbrough John Crowley (director) (born 1969), Irish theatre and film director John Crowley (Irish politician) (1870–1934), Irish Sinn Féin politician John Crowley (1659-1728), British politician John Powers Crowley (1936–1989), U.S. federal judge Johnny Crowley (born 1956), Irish hurler Johnny Crowley (Gaelic footballer), Gaelic footballer with Kerry GAA John Crowley, founder of Meadow Hall Ironworks, now the site of Meadowhall shopping centre