"...named after Thorndale, the residence of James Bruce, D.L., one of the directors of Dunville's Distillery" (John J. Marshall, Belfast Telegraph, 19/02/1941).
“That Mr Henry Stewart be permitted to name a new street off Duncairn Avenue running parallel to Antrim Road ‘Thorndale Avenue’", Minutes of the Town Improvement Committee, 3rd January 1872.
Dual language street sign (English and Irish) approved in November 2024.