The Commonwealth Games Federation (CGF) uses three-letter abbreviation country codes to refer to each group of athletes that participate in the Commonwealth Games. Each code identifies a Commonwealth Games Association.
Several of the CGF codes are different from the standard ISO 3166-1 alpha-3 codes. Other sporting organisations, such as the International Olympic Committee or FIFA, use similar country codes to refer to their respective teams.
There are 71 current CGAs that participate at the Commonwealth Games. The following tables show the currently used code for each CGA and any different codes used in past Games. Some of the past code usage is further explained in the following sections.
^1 Suspended from the Commonwealth on 8 December 2006 over the 2006 Fijian coup d'état.
^2 Left the Commonwealth on 30 November 1967 when it formed part of South Yemen.
^3 Withdrew from the Commonwealth in October 2013.
^4 Left the Commonwealth on 1 July 1997 when China resumed sovereignty.
^5 Withdrew from the Commonwealth on 18 April 1949 with passing the Republic of Ireland Act.
^6 Suspended from the Commonwealth on 19 March 2002. Withdrew voluntarily on 7 December 2003.
^7 Fiji reinstated March 2014