Mustafa Kamel Mustafa, also known as Abu Hamza al-Masri, or simply Abu Hamza, is an Egyptian cleric who was the imam of Finsbury Park Mosque in London, England, where he preached Islamic fundamentalist views.

The Finsbury Park Mosque, also known as the North London Central Mosque, is a five-storey mosque located next to Finsbury Park station close to Arsenal Football Club's Emirates Stadium, in the London Borough of Islington. Finsbury Park Mosque is registered as a charity in England, serving the local community in Islington and the surrounding boroughs of North London.