Thomas Morgan may refer to:
Military[edit]
- Sir Thomas Morgan, 1st Baronet (1604–1679), general of the English Civil War
- Thomas Morgan (navy chaplain) (1769–1851), navy chaplain during the French Revolutionary Wars and chaplain of Portsmouth Dockyard
- Thomas R. Morgan (born 1930), general in the US Marine Corps
Politics[edit]
- Thomas Morgan (MP died 1565), MP for Monmouthshire
- Thomas Morgan (died 1595) (1542–1595), MP for Shaftesbury and Wilton
- Thomas Morgan (MP died 1603), MP for Monmouthshire
- Thomas Morgan (died 1645), MP for Wilton
- Sir Thomas Morgan, 3rd Baronet (1684–1716), Member of Parliament for Herefordshire, 1712–1716
- Thomas E. Morgan (1906–1995), U.S. Representative from Pennsylvania
- Thomas Morgan (judge advocate) (1702–1769), Member of Parliament for Brecon, 1723–1734, Monmouthshire, 1734–1747, and Breconshire, 1747–1769
- Thomas Morgan (of Dderw) (1664–1700), Member of Parliament for Brecon, 1689–1690 and 1698–1700, Monmouthshire, 1690–1700
- Thomas Morgan (of Rhiwpera) (1727–1771), Member of Parliament for Brecon, 1754–1763, and Monmouthshire, 1763–1771
- Thomas Morgan (of Machen) (c. 1589–1664/6), English politician who sat in the House of Commons in 1654
- Thomas Morgan (of Llantarnam) (1546–1606), confidant and spy of Mary Stuart, Queen of Scots
- Thomas J. Morgan (1847–1912), English-born American labor leader and socialist political activist
Other[edit]
- Thomas Morgan (deist) (died 1743), Welsh philosopher
- Thomas Charles Morgan (1783–1843), English physician and writer
- Thomas Morgan (Afanwyson) (1850–1939), Welsh writer, historian and Baptist minister
- Thomas Hunt Morgan (1866–1945), American geneticist and embryologist
- Thomas Morgan (bishop) (born 1941), retired bishop of the Anglican Church of Canada
- Thomas Morgan (footballer) (born 1977), former Irish footballer
- Thomas Morgan (bassist) (born 1981), American jazz bassist
- Thomas Henry Morgan (1857–1940), architect in the U.S. state of Georgia