William McGuckin de Slane

William McGuckin de Slane
Photograph by Charles Reutlinger
Born	12 August 1801 Belfast, Ireland
Died	4 August 1878 Passy, Paris, France
Nationality	Irish and French
Occupation(s)	Orientalist, Arabic phililogist
Known for	Translation of medieval Arabic texts
Spouse(s)	Angadrème Sophie Félicité de la Barre de Mérona (married 30 October 1826) (died 24 September 1833) Anne Elise Sutton de Clonard
Children	Eugene-Michel-Thomas Macguckin (29 October 1836 - 27 March 1899) + 4 others

William McGuckin (also Mac Guckin and MacGuckin), known as Baron de Slane (Belfast, Ireland, 12 August 1801 – Paris, France, 4 August 1878) was an Irish orientalist. He became a French national on 31 December 1838. and held the post of the Principal Interpreter of Arabic of the French Army from 1 September 1846 until his retirement on 28 March 1872. He is known for publishing and translating a number of important medieval Arabic texts.