1990 Currie Cup Division B

The 1990 Currie Cup Division B (known as the Santam Bank Currie Cup for sponsorship reasons) was the second division of the Currie Cup competition, the 51st season in the since it started in 1889.

Changes between 1989 and 1990 seasons

 * Division B was expanded from six to eight teams.
 * were promoted to Division A.
 * , and  were promoted from the Santam Bank Trophy Division A.

Changes between 1990 and 1991 seasons

 * The 1990 season was the last edition of the Currie Cup Division B. Instead, the second tier was changed to a Currie Cup Central Division, which had a four-team Division A and a four-team Division B.
 * and were relegated from the 1990 Currie Cup Division A to the 1991 Currie Cup Central A.
 * and moved to the 1991 Currie Cup Central A.
 * ,, , and  moved to the 1991 Currie Cup Central B.
 * were promoted from the 1990 Santam Bank Trophy to the 1991 Currie Cup Central B.
 * were relegated from Division B to the 1991 Currie Cup Rural C.

Regular season and title play-offs
There were eight participating teams in the 1990 Currie Cup Division B. 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 Division B finals, played at the home venue of the higher-placed team.