The Southern Cross Decoration, post-nominal letters SD, is a South African military decoration for merit which was instituted by the Republic on 1 July 1975. It was awarded to officers of the South African Defence Force for outstanding service of the highest order and utmost devotion to duty.

The Pro Merito Decoration, post-nominal letters PMD, is a military decoration for merit which was instituted by the Republic of South Africa on 1 July 1975. It was awarded to other ranks of the South African Defence Force for outstanding service of the highest order and utmost devotion to duty.