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The following lists events that happened during 1891 in South Africa.
Incumbents
- Governor of the Cape of Good Hope and High Commissioner for Southern Africa:Henry Brougham Loch.
- Governor of the Colony of Natal: Charles Bullen Hugh Mitchell.
- State President of the Orange Free State: Francis William Reitz.
- State President of the South African Republic: Paul Kruger.
- Prime Minister of the Cape of Good Hope: Cecil John Rhodes.
Events
;January
- 12 – Mahatma Gandhi passes the Bar examination in England.
;June
- 11 – Britain and Portugal agree on territory in East Africa at the Anglo-Portuguese Convention in Lisbon.
Births
Deaths
Railways
thumb|[[CGR 5th Class 4-6-0 1891|CGR 5th Class 4-6-0]]
thumb|[[NGR Class K 0-4-0ST]]
thumb|[[NZASM 19 Tonner 0-4-2T]]
Railway lines opened
- 10 February – Transvaal – Roodepoort to Krugersdorp, .
- 7 April – Natal – Newcastle to Charlestown, .
- Thirty CGR 5th Class 4-6-0 1891| 4-6-0 tender locomotives in mainline service on all three Cape Systems.
;Transvaal
- The Nederlandsche-Zuid-Afrikaansche Spoorweg-Maatschappij (NZASM) places the first of twenty-four 19 Tonner tank steam locomotives in service.
