| Birth Name: | Thomas Martin Dunn |
| Birth Date: | 1 September 1836 |
| Birth Place: | Albemarle, Virginia, U.S. |
| Death Place: | Albemarle, Virginia, U.S. |
| Office1: | Member of the Virginia House of Delegates for Albemarle and Charlottesville |
| Term Start1: | January 10, 1906 |
| Term End1: | January 10, 1912 |
| Alongside1: | David H. Pitts |
| Predecessor1: | William H. Boaz |
| Successor1: | John S. White |
| Term Start2: | December 7, 1881 |
| Term End2: | December 2, 1885 |
| Alongside2: | John B. Moon |
| Predecessor2: | Thomas L. Michie |
| Successor2: | Meverell L. Van Doren |
| Term Start3: | December 1, 1875 |
| Term End3: | December 5, 1877 |
| Alongside3: | John Massey & Richard Crank |
| Predecessor3: | Benjamin H. Magruder |
| Successor3: | J. Howard Smith |
| State Senate4: | Virginia |
| District4: | 17th |
| Term Start4: | December 4, 1889 |
| Term End4: | December 6, 1893 |
| Preceded4: | James L. Gordon |
| Succeeded4: | George W. Morris |
| Spouse: | Sallie Shepherd Thompson |
| Party: | Democratic |
| Alma Mater: | Medical College of Virginia |
| Branch: | Confederate States Army |
| Battles: | American Civil War |
Thomas Martin Dunn (September 1, 1836 – April 4, 1916) was an American physician and politician who served in the Virginia House of Delegates and Virginia Senate.[1]
. Earl Gregg Swem. Register of the General Assembly of Virginia, 1776–1918. April 5, 2021. 1918. Virginia State Library. Richmond.