Rifleman John Da Costa was an English soldier of the British Army who died during the First World War.
He was born in 1892, in Mile End, the son of fruit salesman David and Elizabeth Da Costa (née Samuel), both of London. At the time of the 1911 census, the younger Da Costa was working as a fish shop assistant while living with his family at 15 Calverley Street.
Da Costa died 1 August 1917, during the Third Battle of Ypres, while serving with the 2nd Battalion, The Prince Consort's Own (Rifle Brigade) on the Western Front.
He is buried in Brandhoek New Military Cemetery.
- Da Costa, John, cwgc.org. Retrieved 19 February 2013.