General William John Arabin (1750–1827) was an 18th/19th century British Army commander of Irish/French descent who was a flamboyant figure during the Napoleonic Wars.

He was born in Dublin on 27 December 1750, the son of Colonel John Arabin (1703–1757) famed for raising the 57th (West Middlesex) Regiment of Foot at the onset of the Seven Years' War, and his French wife Jeanne Marie Bertin.

[2] In 1812 he was living in West Drayton and was involved in a court case at the Old Bailey when he prosecuted a local man, William Little, for stealing a fowl worth 18 old pence (£0.08).

[6] General Arabin was portrayed in foppish stance by James Gillray in 1802 at the height of the Napoleonic Wars.

Rarely for the times, he divorced his wife Henrietta for adultery with Thomas Sutton of Moulsey in 1786.