The Earl of Leitrim | |
|---|---|
 | |
| Member of Parliament for County Leitrim | |
| In office 1839–1847 Serving with Samuel White | |
| Preceded by | Robert Clements, Viscount Clements Samuel White |
| Succeeded by | Edward King-Tenison Charles Clements |
| Personal details | |
| Born | William Sydney Clements 15 October 1806 Dublin, Ireland |
| Died | 2 July 1878 (aged 71) County Donegal, Ireland |
| Manner of death | Assassination by gunshot |
| Parent(s) | Nathaniel Clements, 2nd Earl of Leitrim |
| Alma mater | Royal Military College, Sandhurst |
| Military service | |
| Branch/service | British Army |
| Rank | Lieutenant-Colonel |
William Sydney Clements, 3rd Earl of Leitrim (15 October 1806 – 2 April 1878), was an Anglo-Irish nobleman and landlord notorious in Irish history for his mistreatment of his tenants. He was assassinated in the north of County Donegal in Ireland in April 1878.