Roslyn is a major residential and retail suburb of the New Zealand city of Dunedin. It is located 150 metres (490 ft) above the city centre on the ridge which runs in a crescent around the central city's western edge. It is 2.5 kilometres (1.6 mi) to the northwest of the city centre, immediately above the Town Belt. Roslyn's 2001 population was 3,957.
Roslyn is connected to the city's CBD via Stuart Street and City Road. The former of these runs below Roslyn under the Roslyn Overbridge, and is linked to the suburb via a complex interchange To the west of Roslyn, Stuart Street passes the suburbs of Kaikorai and Wakari before becoming Taieri Road, which eventually traverses Three Mile Hill to reach the Taieri Plains. City Road travels through Belleknowes before linking with Rattray Street and descending the City Rise, reaching the central city at The Exchange. Roslyn is also connected to the suburbs of Mornington to the southwest and Maori Hill to the northeast by way of Highgate, Roslyn's main road.
Roslyn is predominantly residential, though it does contain one of the city's peripheral retail areas at and around Roslyn Village on Highgate just to the southwest of the overbridge. One of the city's most notable single-sex girls' schools, Columba College, is located close to the suburb's border with Maori Hill.
The suburb and its neighbour, Wakari, between them lend their names to one of Dunedin's most prominent football teams, Roslyn-Wakari. This team's home ground is actually at Ellis Park in Kaikorai, immediately to the northwest of Roslyn. Also in Kaikorai is the building of the former Roslyn Woollen Mills, a company through whose products the name of Roslyn was widely known nationwide.