| Birth Date: | 19 July 1867 |
| Birth Place: | Lexington, Virginia, U.S. |
| Death Place: | Lexington, Virginia, U.S. |
| Office1: | Member of the Virginia House of Delegates from Rockbridge County |
| Term Start1: | December 4, 1889 |
| Term End1: | December 6, 1893 |
| Predecessor1: | William A. Anderson |
| Successor1: | R. G. Paxton |
| Party: | Democratic |
| Alma Mater: | Virginia Military Institute Washington & Lee University |
| Spouse: | Katherine Paul |
| Father: | John Letcher |
| Allegiance: |  United States |
| Branch: | United States Army |
| Serviceyears: | 1917–1919 |
| Rank: | Captain |
| Unit: | 111th Field Artillery |
| Battles: | World War I |
Greenlee Davidson Letcher (July 19, 1867 – August 12, 1954) was an American politician who served in the Virginia House of Delegates.[1] He was the son of Governor John Letcher.
. Earl Gregg Swem. Register of the General Assembly of Virginia, 1776–1918. June 28, 2020. 1918. Virginia State Library. Richmond.