Rifleman Barnett Rabbinovitz was an English soldier of the British Army who died during the First World War.

He was born in Whitechapel, the son of Russian-born parents Jacob, a tailor presser by trade, and Sarah Rabbinovitz. At the time of the 1911 Census, the Rabbinovitz family were residing at 31 Ellingfort Road, Hackney.

Aged 20, Rabbinovitz died on 3 May 1917, during the Battle of Arras, while serving on the Western Front with the 8th (Service) Battalion, The King's Royal Rifle Corps.

He has no known grave and is commemorated by the Arras Memorial.