Named after a house which existed at least as early as the 1811. Rosetta House and Farm are advertised for sale in The Belfast News-Letter in this year. Rosetta Lodge was described in 1825 as a ‘desirable country residence’, whilst Rosetta House was said to be 'about one mile from Belfast, the Newtownbreda Road’ in 1828 (Belfast Commercial Chronicle). The earliest occupier of the house known to us at present was Mrs Eliza Blacker, widow of Rev James Stewart Blacker, who had been rector of Keady. Eliza Blacker died at Rosetta in 1837.
The house was probably named after the Rosetta Stone discovered in 1799 and fully deciphered by Jean-François Champollion in 1822. The house, in turn, seems to have given name to Rosetta National School, now Rosetta Primary School. It is said that a plaster-cast replica of the Rosetta Stone was once displayed in the school, set into a wall, but that this disappeared in the 1920s.
"Application from Mr. Hugh Scott to name a new street between Rosetta Avenue and St. John’s Avenue read, and referred to the Surveyor for report". (18th August 1908).
"Resolved — That on the application of the owners per Mr. Hugh Scott, a new street on property situate off Rosetta Avenue be named Rosetta Parade". (25th August 1908).