The Pro Merito Medal of 1975, post-nominal letters PMM, is a military decoration 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 exceptionally meritorious service and particular devotion to duty, and was the non-commissioned officers' version of the Southern Cross Medal of 1975 (SM).

The Southern Cross Medal of 1975, post-nominal letters SM, is a military decoration which was instituted by the Republic of South Africa on 1 July 1975. It was awarded to officers of the South African Defence Force for exceptionally meritorious service and particular devotion to duty.