This is a comparison of the IOC, FIFA, and ISO 3166-1 three-letter codes, combined into one table for easy reference. Highlighted rows indicate those entries in which the three-letter codes differ from column to column. The last column indicates the number of codes present followed by letters to indicate which codes are present (O for Olympic, F for FIFA, and I for ISO) and dashes when a code is absent; capital letters indicate codes which match; lower case letters indicate codes which differ.[1]
Ambiguities
Currently, the only ambiguous trigraph between IOC, FIFA and ISO codes is:
YEM - historical ISO code for the North Yemen[l], became the generally accepted code for unified Yemen
Including other lists of country three-letter-codes increases the number of ambiguities. For example:
AUS - IOC, FIFA and ISO code for Australia, but UNDP code for Austria (Australia is AUL there)
List
This list only includes nations or territories that have been assigned at least one of these three types of country codes. For a more complete list of countries, see list of countries.
^The Netherlands Antilles as a constituent country of the Netherlands was dissolved in 2010, with all island territories remaining a part of the Kingdom of the Netherlands but with various legal statuses.
^Mainland China (People's Republic of China except Hong Kong and Macau) is designated as the "People's Republic of China", ("China" for short) in Olympic Games, and as "China PR", ("China" for short) in football matches.
^ abcdEngland, Northern Ireland, Scotland and Wales are given the ISO 3166-2 codes GB-ENG, GB-NIR, GB-SCT and GB-WLS, respectively, under the entry for the United Kingdom.
^IOC considers Faroe Islands as a part of Denmark. However, Faroe Islands Paralympic Committee is a member of International Paralympic Committee, encoded as FRO.
^North Korea is designated as "Democratic People's Republic of Korea", abbreviated to "DPRK", in Olympic Games, and as the "Korea DPR" in football matches.
^South Korea is designated as "Republic of Korea" in Olympic Games, and as the "Korea Republic" in football matches.
^With mixed International recognition of Kosovo, for ISO purposes, Kosovo is an 'autonomous province' of Serbia with ISO 3166-2 code RS-KM, under the entry for Serbia. A temporary placeholder code XKX is used by several organisations for the country.
^IOC considers Macau as a part of China. However, the National Paralympic Committee of Macao, China is a member of International Paralympic Committee, encoded as MAC.
^The United Kingdom's short names generally used in the Olympic Games are "Great Britain and Northern Ireland" or just "Great Britain", not the "United Kingdom".[citation needed] In FIFA, its four constituent countries have separate codes.
