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).

[1][2] The medal could be awarded to other ranks of the South African Defence Force for exceptionally meritorious service and particular devotion to duty.

A Bar, instituted in 1993 as well, could be awarded in recognition of further similar displays of meritorious service and devotion to duty.

It depicts a disa uniflora on a framed roundel, in the centre of a starburst of radiating points on the obverse.