Johannes C. Krogh (September 6, 1846, Grahamstown, Cape Town – May 5, 1921), of Danish extraction, was a civil servant and politician of the former South African Republic (later known as the province of Transvaal of the Republic of South Africa).

[2] Krogh held the position of Magistrate of Pretoria from 1 June 1878 to 31 December 1878, with duties similar to that of a Landdrost.

Krogh was appointed First High Commissioner of Swaziland under the Boer Republic, in 1893, by President Paul Kruger.

[4] From Feb 21st, 1895 Krogh held the position of Special Commissioner in the Swaziland Government.

He was also one of the Boer signatories to the "Treaty of the Peace of Vereeniging", signed on 31 May 1902 at 11:05 in Melrose House, Pretoria, that formally ended the Anglo-Boer War.