| William W. Allen | |
| State House: | Pennsylvania |
| District: | 65th |
| Term Start: | January 7, 1969 |
| Term End: | November 30, 1972 |
| Predecessor: | District Created |
| Successor: | Robert J. Kusse |
| State House2: | Pennsylvania |
| District2: | Warren County |
| Term Start2: | 1967 |
| Term End2: | 1968 |
| Birth Date: | 7 June 1908 |
| Birth Place: | Dayton, Pennsylvania[1] |
| Death Place: | Dundee, Florida |
| Party: | Republican |
William W. Allen (June 7, 1908 – June 20, 1992) was a former Republican member of the Pennsylvania House of Representatives.[2]