Lionel Sackville-West, 3rd Baron Sackville

{{Use dmy dates|date=December 2023}}

{{Infobox noble

|name =The Lord Sackville

|image =Lionel Edward Sackville-West, 3rd Baron Sackville.jpg

|image_size =

|caption =

|birth_name =Lionel Edward Sackville-West

|birth_date ={{Birth date|1867|5|15|df=y}}

|birth_place =

|death_date ={{Death date and age|1928|1|28|1867|5|15|df=y}}

|death_place =

|parents =William Edward Sackville-West
Georgina Dodwell

|spouse =Victoria Sackville-West

|issue =Victoria Mary (Vita) Sackville-West

|tenure =3 September 1908 – 28 January 1928

|title =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,[http://www.landedestates.ie/LandedEstates/jsp/estate-show.jsp?id=63 Landed Estates Database, Nui Galway, "Estate: Dodwell"], landedestates.ie, 18 May 2011. of Sligo. 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.{{London Gazette | issue=28598 |page=2641 | date=12 April 1912}} 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.