| Birthname: | William Henry Ewing |
| Birth Date: | March 22, 1841 |
| Death Place: | Prince Edward, Virginia, U.S. |
| Office: | Member of the Virginia House of Delegates from Prince Edward County |
| Term Start: | January 12, 1910 |
| Term End: | January 14, 1914 |
| Predecessor: | John J. Owen |
| Successor: | Peter Winston |
| Party: | Democratic |
| Alma Mater: | Hampden–Sydney College |
| Spouse: | Margaret Vaughan |
| Branch: | Confederate States Army |
| Unit: | 3rd Virginia Cavalry |
| Battles: | American Civil War |
William Henry Ewing (March 22, 1841 – September 2, 1924) was an American Democratic politician who represented Prince Edward County in the Virginia House of Delegates from 1910 to 1914.[1]