Duncluce Avenue had originally been called Dunluce Street until the owners and residents requested a name change.
"The application of Mr. John Ritchie of 93 Victoria Street to name a new street off the Lisburn Road 'Dunluce Street' be granted. (11th November 1868).
"A deputation of owners and residents in Dunluce Street attended to ask the Committee to have the name of that street changed to Dunluce Avenue, and submitted a Memorial in support of their application, and they were informed their request would be considered, but that under a resolution approved of by the Council the name “Avenue” could not be given to streets of less width than 50 feet; and,
Alderman Johnston gave notice that he would move at next Meeting: “That the Council be recommended to rescind the provision adopted on 1st July 1889, that no street of a less width than 50 feet be called ‘Avenue’.” (13th September 1893).
“The Surveyor was instructed to report on this day week on ,,,:Change of name of Dunluce Street to Dunluce Avenue". 4th October 1893).
“Resolved that on the application of the deputation of owners and residents in Dunluce Street that waited on the Committee of 13th ult. the name of that street be changed to Dunluce avenue. (Improvement Committee, 11th October 1893).
“That the resolution passed on 11th inst. relative to the change of the name of Dunluce Street to ‘Dunluce Avenue’ be reconsidered, and that no street, whether a new one or one already named, of less than 50 feet in width be called an ‘Avenue’.” (18th October 1893).
It is interesting to note that the following decision was recorded in the minutes of the Improvement Committee of 25th October 1893: "that no street whether a new one or one already named of less than 50 feet in width be hereafter called an Avenue".