The name Mountainview is in in the 1924 Belfast Street Directory.
"Resolved - That the undernoted names for new streets be approved - ... Mountainview Park, Mountainview Gardens for new streets off Crumlin Road on the property of Mr. R. McMullan. ...". (17th December 1935).
"On the recommendation of the city surveyor, the committee approved of a proposal of Mr Thomas Mean to name new streets on his property, situated off Crumlin Rd. as follows: Mountainview Park (continuation of), Mountainview Gardens (continuation of), Mountainview Drive, Mountainview Parade, Mountainview Place. (2nd June 1959).
Dual language street sign (English and Irish) approved in March 2024.