John Clancy
John Clancy may refer to:
Politicians
- John Clancy (Labour politician), leader of Birmingham City Council
- John Michael Clancy, United States Representative from New York
- John R. Clancy, United States Representative from New York
- John T. Clancy, U.S. politician from Brooklyn, New York City
- J. J. Clancy (North Dublin MP), Irish Member of Parliament North Dublin, 1885–1918
- J. J. Clancy (Sinn Féin politician), Irish Teachta Dála North Sligo, 1918–1921
Sports
- Jack Clancy, American football player
- Jack Clancy (Australian footballer), Australian rules footballer
Others
- John Clancy (Medal of Honor), American soldier and Medal of Honor recipient
- John Clancy (playwright), American playwright and theater director
- John Joseph Clancy (bishop), Bishop of Elphin from 1895 to 1912
- John S. J. Clancy, Australian judge
- John William Clancy, U.S. federal judge
- John Clancy, American theater composer and orchestrator