| William Felix Munster | |
| Office: | Member of Parliament for Mallow |
| Term Start: | 7 June 1872 |
| Term End: | 31 January 1874 |
| Predecessor: | George Waters |
| Successor: | John George MacCarthy |
| Birth Date: | 1849 |
| Death Place: | St. Louis, Missouri, United States |
| Nationality: | Irish |
| Party: | Liberal |
| Parents: | Henry Munster |
| Spouse: | Blanche Lynch |
William Felix Laurence Austin Munster (1849 – 11 April 1877) was an Irish Liberal Party politician.
He was elected as the Member of Parliament (MP) for Mallow at a by-election in 1872 but did not stand again at the next general election in 1874.[1]