| William Hewat | |
| Office: | Teachta Dála |
| Term Start: | August 1923 |
| Term End: | June 1927 |
| Constituency: | Dublin North |
| Nationality: | Irish |
| Party: | Businessmen's Party |
William Hewat was an Irish politician and company director. He was elected to Dáil Éireann as a Businessmen's Party Teachta Dála (TD) for the Dublin North constituency at the 1923 general election.[1] He did not contest the June 1927 general election.[2]