| Name | Participants | Dates | Stamps | ||
| 10th Anniversary of Dipl..ns South Africa-Thailand | 2 | (with Thailand) | 2003 | 4 | |
| Indonesia-South Africa Joint Issue | 2 | (with Indonesia) | 2011 | 10 | |
| Nelson Mandela & Mahatma..issue India-South Africa | 1 | 2018 | 2 | (incomplete) | |
| Peace | 54 | (with Aden - Virgin Islands) | 1945 - 1947 | 131 | (incomplete) |
| SAPOA | 6 | (with Botswana - Zimbabwe) | 2004 | 53 | (incomplete) |
| Silver Jubilee | 57 | (with Antigua - Virgin Islands) | 1935 | 232 | (incomplete) |
| Silver Wedding | 68 | (with Aden - Zanzibar) | 1948 - 1949 | 134 | (incomplete) |
| Whales of the Southern Oceans | 3 | (with Namibia - Norfolk Island) | 1998 | 7 | (incomplete) |