This street was named in 1857 (IHTA) by Belfast Corporation. Camden Street which is parallel to Claremont Street features in the Ordinance Survey map of 1858. Fitzwilliam Street which in turn is parallel to Camden Street is listed in Slater’s Commercial Directory in 1852. Abercorn Street which runs off Claremont Street and connects to Camden Street was named in 1866. (IHTA). Regarding the date of naming there is also this from the minutes of the Improvement Committee: "Resolved that the new street on the site of Brewery Lane be called ‘Claremont St’ and the new street in Fountainville be called ‘Dufferin Street’ ". 25th May 1864.