| The Lord Sackville | |
| Birth Name: | Lionel Edward Sackville-West |
| Birth Date: | 15 May 1867 |
| Parents: | William Edward Sackville-West Georgina Dodwell |
| Spouse: | Victoria Sackville-West |
| Issue: | Victoria Mary (Vita) Sackville-West |
| Tenure: | 3 September 1908 – 28 January 1928 |
| Baron Sackville | |
| Successor: | Charles Sackville-West, 4th Baron |
Lionel Edward Sackville-West, 3rd Baron Sackville (15 May 1867 – 28 January 1928), was a British peer.
Sackville-West was the son of the Honourable William Edward Sackville-West, sixth son of George Sackville-West, 5th Earl De La Warr and Lady Elizabeth Sackville. His mother was Georgina, daughter of Capt. George Dodwell, of Kevinsfort House,[1] of Sligo.[1] He inherited the barony in 1908 on the death of his uncle, the diplomat Lionel Sackville-West, 2nd Baron Sackville. In April 1912, Lord Sackville was appointed a deputy lieutenant of Kent. He married his first cousin Victoria Sackville-West (1862–1936), illegitimate daughter of the second Baron, in 1890. Their daughter was the novelist and poet Vita Sackville-West.