Thomas Meagher

Thomas Meagher may refer to:


 * Thomas Meagher (merchant) (c 1764–1837) Irish emigrant to Newfoundland, merchant and ship-owner
 * Thomas Meagher (MP) (1796–1874), Irish businessman and politician, Mayor of Waterford and MP for Waterford 1847–57
 * Thomas Francis Meagher (1823–1867), leader of the Young Irelanders in the 1848 Rebellion, acting Governor of the Montana Territory
 * Thomas William Meagher (1902–1979) Australian medical practitioner, Lord Mayor of Perth, Western Australia