Leading Stoker Frederick John Koppe was an English sailor of the Royal Navy who died during the First World War.
He was born on 24 March 1888, in Bethnal Green, the son of German-born parents Frederick, a barman by trade, and Louisa Koppe.
Koppe died on 30 December 1915, when the armoured cruiser HMS Natal exploded while anchored at Cromarty Firth, Scotland, with the loss of at least 390 on board.
He has no known grave and is commemorated by the Chatham Naval Memorial.
- Koppe, Frederick John, cwgc.org. Retrieved 5 August 2013.