William Beresford, 4th Baron Decies

The Right Honourable The Lord Decies DL JP
In The Sketch, 20 March 1901
Born	William Marcus de la Poer Horsley Beresford (1865-01-12)12 January 1865
Died	30 July 1910(1910-07-30) (aged 45) Hornsey, London
Education	Eton College
Alma mater	Christ Church, Oxford
Spouse	Maria Gertrude Willoughby ​ ​ (m. 1901)​
Parent(s)	William Beresford, 3rd Baron Decies Catherine Anne Dent

William Marcus de la Poer Horsley Beresford, 4th Baron Decies DL JP (12 January 1865 – 30 July 1910) was an Anglo-Irish aristocrat.