Lance Corporal John Joseph Fantozzi was an English soldier of the British Army who died during the First World War.

He was born in 1896, in Sheffield, the son of Italian-born confectioner Antonio and Louisa Fantozzi (née Cuneo), who was local to the area. At the time of the 1911 census, the younger Fantozzi was working as a shoemaker while living with his family at 112 Meadow Street.

Fantozzi died on 9 October 1917, of wounds received on the Western Front, while serving with the 9th Battalion, The Prince of Wales's Own (West Yorkshire Regiment).

He is buried in Bard Cottage Cemetery, Belgium.