| South Africa|
Natal (1st title)
| 4 May – 6 October 1990|
The 1990 Currie Cup Division A (known as the Santam Bank Currie Cup for sponsorship reasons) was the top division of the Currie Cup competition, the premier domestic rugby union competition in South Africa. This was the 52nd season since the competition started in 1889.
South West Africa withdrew.
Western Transvaal were promoted from Division B.
The Currie Cup competition was reduced to six teams, with Northern Free State and Western Transvaal relegated to the 1991 Currie Cup Central A competition.
1990 Currie Cup Division A Wikipedia
There were eight participating teams in the 1990 Currie Cup Division A. These teams played each other twice over the course of the season, once at home and once away. Teams received two points for a win and one points for a draw. The top two teams qualified for the title play-offs. The final was then played at the home venue of the team that finished first during the season.