Sir William Lennox Napier | |
|---|---|
| Born | 12 October 1867 |
| Died | 13 August 1915 (aged 47) |
| Nationality | British |
| Occupation | Baronetage of Merrion Square |
| Spouse | Lady Mabel E. G. Napier (née Forster) |
Lieutenant Colonel Sir William Lennox Napier, 3rd Baronet of Merrion Square (12 October 1867 – 13 August 1915) was a British baronet and soldier.