Blackburn Hamlet is a suburban community in Innes Ward, in the east end of Ottawa, Ontario, Canada. Before the 2001 amalgamation of the city of Ottawa, it was in the city of Gloucester. It is surrounded by rural areas and contains several older and newer areas of settlement. According to the Canada 2021 Census, its population was 8,173. The community took its name from Robert Blackburn, former Member of Parliament for Russell.

Gloucester is a former municipality and now geographic area of Ottawa, Ontario, Canada. Located east of Ottawa's inner core, it was an independent city until amalgamated with the Regional Municipality of Ottawa–Carleton in 2001 to become the new city of Ottawa. The population of Gloucester is about 150,012 people.