| Rossmore | |
| Pushpin Map: | South Africa Gauteng |
| Pushpin Map Caption: | Rossmore's location in Gauteng |
| Pushpin Label: | Rossmore |
| Subdivision Type: | Country |
| Subdivision Name: | South Africa |
| Subdivision Type1: | Province |
| Subdivision Type2: | City |
| Subdivision Name1: | Gauteng |
| Subdivision Name2: | Johannesburg |
| Established Date: | September 9, 1925 |
| Area Footnotes: | [1] |
| Area Total Km2: | 1.16 |
| Area Total Sq Mi: | 0.4 |
| Population Total: | 1539 |
| Population As Of: | 2011 |
| Population Density Km2: | 1327 |
| Population Density Sq Mi: | 3436.9 |
| Demographics Type1: | Races |
| Demographics1 Title1: | White |
| Demographics1 Info1: | 9.2% |
| Demographics1 Title2: | Asian |
| Demographics1 Info2: | 3.8% |
| Demographics1 Title3: | Cape Coloured |
| Demographics1 Info3: | 7.7% |
| Demographics1 Title4: | Black |
| Demographics1 Info4: | 77.1% |
| Demographics1 Title5: | Other |
| Demographics1 Info5: | 2.2% |
| Demographics Type2: | Languages |
| Demographics2 Title1: | English |
| Demographics2 Info1: | 21.1% |
| Demographics2 Title2: | Zulu |
| Demographics2 Info2: | 20.2% |
| Demographics2 Title3: | Tswana |
| Demographics2 Info3: | 11.6% |
| Demographics2 Title4: | Tswana |
| Demographics2 Info4: | 10.1% |
| Demographics2 Title5: | Other |
| Demographics2 Info5: | 37.0% |
Rossmore is a suburb of Johannesburg, around 5 km northwest of City Hall. It borders Langlaagte to the north and Homestead Park. The name comes from the village of Paarlshoop, the oldest private township on the Witwatersrand.
Rossmore covers 1 km2 and borders Westdene on the northwest, Melville on the north, Auckland Park on the east, Brixton on the south, and Hurst Hill on the southwest. The majority of Rossmore consists of the Kingsway Campus Auckland Park of the University of Johannesburg, Helen Joseph Hospital, and Hoërskool Vorentoe. Just east of Chiselhurst Drive and north of the southwestern end of St. Swinthin's and Auckland Avenues, in the latter case very old ones.
Rossmore was founded on September 9, 1925, and was laid out on Braamfontein Farm. The suburb is named in honor of Lord Derrick Westenra, 5th Baron Rossmore's only daughter, Dame Mary Bailey, the second wife of the mining magnate, Sir Abe Bailey. In the early years, it had a largely even balance between Afrikaans and English speakers, but the transition from Rand Afrikaans University to the University of Johannesburg shifted the population toward a largely black, English- and Zulu-speaking one.