Mountjoy, a former barony of Ireland now known as Dungannon Upper
Monte do Gozo (Mountjoy), the hill near Santiago de Compostela where pilgrims get their first sight of the cathedral
Mons Gaudi (Mountjoy), now Nabi Samwil, the hill roughly 4 kilometers (2.5 miles) north of Jerusalem where the army of the First Crusade rejoiced upon getting their first glimpse of Jerusalem in June of 1099
Mountjoy, Durham, an escarpment south of Durham, England, where pilgrims got their first view of the cathedral, now home to a campus of Durham University
The Mountjoy was a merchant ship used to relieve the Siege of Derry in Ulster in 1689. It was also the codename for the ship used in the 1914 Larne Gun Running.
