Thomas Ellis (c. 1774–1832) was a Tory UK Member of Parliament representing Dublin City in 1820–1826.

In a by-election on 30 June 1820 Ellis replaced the deceased former Whig MP the Right Honourable Henry Grattan. The Whig candidate defeated in the by-election was the great orators son also called Henry Grattan. Ellis retained the seat until he retired, at the dissolution of Parliament, in 1826.

References

• Parliamentary Election Results in Ireland, 1801-1922, edited by B.M. Walker (Royal Irish Academy 1978)
• The Parliaments of England by Henry Stooks Smith (1st edition published in three volumes 1844–50), 2nd edition edited (in one volume) by F.W.S. Craig (Political Reference Publications 1973)
• Leigh Rayment's Historical List of MPs