Frank O'Donnell

• Frank O'Donnell (footballer), Scottish professional footballer
• Frank O'Donnell (actor), Australian actor
• Frank A. O'Donnel, New York politician
• Frank Hugh O'Donnell, Irish nationalist writer and politician
• Frank J. Hugh O'Donnell, Irish critic, playwright and politician
• Francis Martin O'Donnell, Irish and international diplomat, Ambassador of the Sovereign Order of Malta to Slovakia and retired former UN Resident Coordinator