Named after the Battle of Waterloo (1815). "The city surveyor reported that pursuant the Minute of the 28th ult. Mr Robert McIntyre had submitted alternative names for new streets in the Belfast Castle estates as follows: Waterloo Park, Waterloo Park South, Waterloo Park North, Downview Park and Downview Park South. The committee, on the recommendation of the city surveyor, approved of these names"...(11th September 1934).