John Mulholland
John Mulholland may refer to:
- John Mulholland, 1st Baron Dunleath, Irish businessman and Conservative member of parliament
- John F. Mulholland Jr., United States Army officer
- John Mulholland (footballer, born 1928), Scottish footballer
- John Mulholland (footballer, born 1932), Scottish footballer
- John Mulholland (Irish republican), president of the Irish Republican Brotherhood, 1910–1912
- John Mulholland (journalist), editor of The Guardian US
- John Mulholland (director), American writer and director
- John Mulholland (magician), American magician
- John Mulholland (politician), Irish politician, mayor of Galway 1986–1987 and 1996–1997
- John Henry Mulholland, Liberal candidate in the 1962 Stockton-on-Tees by-election and father of Greg Mulholland MP