| William Hagan DuBarry | |
| Order: | Acting |
| Office: | President of the University of Pennsylvania |
| Term Start: | 1953 |
| Term End: | 1953 |
| Successor: | Gaylord Harnwell |
| Predecessor: | Harold Stassen |
| Birth Date: | 1894 |
| Birth Place: | Lewistown, Pennsylvania |
| Death Date: | 1958 |
| Death Place: | Philadelphia, Pennsylvania |
| Branch: | U.S. Army |
| Serviceyears: | 1917-1919 |
| Rank: | Second Lieutenant |
William Hagan DuBarry (1894 - 1958) was the acting President of the University of Pennsylvania during parts of 1950–51, 1952, and 1953.[1] He held the position of Executive Vice President from 1944 to 1954.