However, from 1961 to 1994 South Africa was not a member of the Commonwealth, so for that time the British head of mission was an ambassador and his office was the embassy.
Besides the high commission in Pretoria, the UK maintains a consulate-general in Cape Town.
[1] The high commissioner to South Africa is also accredited to the Kingdom of Eswatini (formerly Swaziland), but a resident high commissioner to Eswatini has been appointed and is expected in post in summer 2019.
[2] From 2005 to 2019 the high commissioner to South Africa was also accredited to the Kingdom of Lesotho.
The Union became the Republic of South Africa in 1961; the country left the Commonwealth of Nations at that time but rejoined in 1994.