| Henry Edgarton Allen | |
| Term Start: | 1908 |
| Term End: | 1911 |
| Predecessor: | Charles Henry Parmelee |
| Successor: | Georges Henri Boivin |
| Birth Date: | 1864 12, df=yes |
| Birth Place: | Waterloo, Canada East |
| Profession: | merchant |
| Party: | Liberal |
| Riding: | Shefford (1908-1911) |
Henry Edgarton Allen (14 December 1864 – 28 December 1924) was a Canadian politician and merchant. He was elected in 1908 to the House of Commons of Canada as a member of the Liberal Party representing the riding of Shefford.