| William Leslie | |
| Office: | Member of Parliament for Aberdeenshire |
| Term Start: | 13 February 1861 |
| Term End: | 15 May 1866 |
| Predecessor: | Lord Haddo |
| Successor: | William Dingwall Fordyce |
| Birth Date: | 16 March 1814 |
| Nationality: | Scottish |
| Party: | Conservative |
William Leslie (16 March 1814 – 4 March 1880), was a Scottish Conservative Party politician.
Leslie was elected Conservative MP for Aberdeenshire at a by-election in 1861—caused by the succession of George Hamilton-Gordon to 5th Earl of Aberdeen—and held the seat until 1866 when he resigned.[1]