| Trigram | Entity | Comment |
| AFG |  Afghanistan | |
| ALB |  Albania | |
| ALG |  Algeria | |
| AMS |  American Samoa | |
| ANA | Authorised Neutral Athlete | For Authorised athletes of banned countries - Like Russia at London 2017 |
| ANC | ANC – South Africa | African National Congress – South Africa |
| AND |  Andorra | |
| ANG |  Angola | |
| ANL |  Anguilla | |
| ANT |  Antigua and Barbuda | |
| ARG |  Argentina | |
| ARM |  Armenia | |
| ARU |  Aruba | |
| AUL |  Australia | |
| AUS |  Austria | |
| AZE |  Azerbaijan | |
| BAH |  Bahrain | |
| BAL | Baltic States | Estonia, Lithuania, Latvia |
| BAR |  Barbados | |
| BDI |  Burundi | |
| BEL |  Belgium | |
| BEN |  Benin | |
| BER |  Bermuda | |
| BGD |  Bangladesh | |
| BHA |  The Bahamas | |
| BHU |  Bhutan | |
| BIH |  Bosnia-Herzegovina | |
| BKF |  Burkina Faso | |
| BOL |  Bolivia | |
| BOT |  Botswana | |
| BRA |  Brazil | Also RIO for "Brazil (Rio de Janeiro)" and SUB for "Brazil (Subin)" |
| BRU |  Brunei | |
| BUL |  Bulgaria | |
| BUR |  Burma | Obsolete 1989; now Myanmar |
| BVI |  British Virgin Islands | |
| BYE |  Belarus | |
| BZE |  Belize | |
| CAF |  Central African Republic | |
| CAM | Central America | |
| CAN |  Canada | |
| CAR |  Caribbean | |
| CAY |  Cayman Islands | |
| CHA | Undistributed Other | |
| CHD |  Chad | |
| CHI |  Chile | |
| CIS |  Commonwealth of Independent States | |
| CKI |  Cook Islands | |
| CMB |  Cambodia | Formerly Kampuchea (KAM, 1975–1990) and Khmer Republic (KMR, 1970–1975) |
| CMR |  Cameroon | |
| COI |  Comoros | |
| COL |  Colombia | |
| COS |  Costa Rica | |
| CPR |  People's Republic of China | |
| CRO |  Croatia | |
| CUB |  Cuba | |
| CVI |  Cape Verde | |
| CYP |  Cyprus | |
| CZE |  Czech Republic | Since 1993 |
| DAH | Dahomey | Obsolete 1977; now Benin |
| DEN |  Denmark | |
| DJI |  Djibouti | |
| DMI |  Dominica | |
| DOM |  Dominican Republic | |
| DRK |  North Korea | |
| EAC |  East African Community | Kenya, Tanzania, Uganda |
| ECU |  Ecuador | |
| EGY |  Egypt | |
| ELS |  El Salvador | |
| EQG |  Equatorial Guinea | Also EQL for "Equatorial Guinea (Douala)" |
| ERI |  Eritrea | |
| EST |  Estonia | |
| ETH |  Ethiopia | |
| FAN | French Antilles | Probably means just St-Martin |
| FGU |  French Guiana | |
| FIJ |  Fiji | |
| FIN |  Finland | |
| FLC | FLCS – Djibouti | Front de Libération de la Côte des Somalis |
| FOS | French Overseas Territories | Probably includes Saint-Pierre and Miquelon |
| FPL |  French Polynesia | |
| FRA | France | |
| FSM |  Federated States of Micronesia | |
| GAB |  Gabon | |
| GAM |  The Gambia | |
| GBS |  Guinea-Bissau | |
| GDR |  East Germany | Obsolete 1990 |
| GEO |  Georgia | |
| GER |  Germany | |
| GHA |  Ghana | |
| GIL |  Gilbert Islands | Obsolete 1979; now Kiribati |
| GLO | Global | |
| GRE |  Greece | |
| GRN |  Grenada | |
| GUA |  Guatemala | |
| GUD | Guadeloupe | |
| GUI |  Guinea | |
| GUY |  Guyana | |
| HAI |  Haiti | |
| HLS |  Vatican City (Holy See) | |
| HOK |  Hong Kong | |
| HON |  Honduras | |
| HUN |  Hungary | |
| ICE |  Iceland | |
| IND |  India | |
| INS |  Indonesia | |
| INT | Inter-Regional | |
| IRA |  Iran | |
| IRE |  Ireland | |
| IRQ |  Iraq | |
| ISR |  Israel | |
| ITA |  Italy | |
| IVC |  Côte d'Ivoire | |
| JAM |  Jamaica | |
| JOR |  Jordan | |
| JPN |  Japan | |
| KAZ |  Kazakhstan | |
| KEN |  Kenya | |
| KIR |  Kiribati | |
| KOS |  Kosovo | |
| KUW |  Kuwait | |
| KYR |  Kyrgyzstan | |
| LAO |  Laos | |
| LAT |  Latvia | |
| LEB |  Lebanon | |
| LES |  Lesotho | |
| LIB |  Libya | |
| LIE |  Liechtenstein | |
| LIR |  Liberia | |
| LIT |  Lithuania | |
| LMA | ? | Landmine Action UK (?) |
| LUX |  Luxembourg | |
| MAC |  Macau | |
| MAF | ? | Mission Aviation Fellowship (?) |
| MAG |  Madagascar | |
| MAL |  Malaysia | |
| MAQ |  Martinique | |
| MAR |  Mauritius | |
| MAS |  Marshall Islands | |
| MAT |  Malta | |
| MAU |  Mauritania | |
| MDV |  The Maldives | |
| MEX |  Mexico | |
| MIC | Federated States of Micronesia | |
| MLD | MLD – Djibouti | Mouvement de Libération de Djibouti |
| MLI |  Mali | |
| MLW |  Malawi | |
| MNC |  Monaco | |
| MOL |  Republic of Moldova | |
| MON |  Mongolia | |
| MOR |  Morocco | |
| MOT |  Montserrat | |
| MOZ |  Mozambique | |
| MTN |  Montenegro | |
| MYA | Myanmar | |
| NAM |  Namibia | |
| NAN |  Netherlands Antilles | |
| NAU |  Nauru | |
| NCA |  New Caledonia | |
| NEP |  Nepal | |
| NER |  Niger | |
| NET |  Netherlands | |
| NHE |  New Hebrides | Obsolete 1980; now Vanuatu |
| NIC |  Nicaragua | |
| NIR |  Nigeria | |
| NIU |  Niue | |
| NLM | National Liberation Movements | |
| MCD |  North Macedonia | |
| NOR |  Norway | |
| NZE |  New Zealand | |
| OMA |  Oman | |
| PAC | PAC – Azania | Pan Africanist Congress of Azania |
| PAE | PAE – Zimbabwe | Pacific Architects and Engineers |
| PAF | Patriotic Front for the Liberation of Zimbabwe | |
| PAK |  Pakistan | |
| PAL |  Occupied Palestinian Territory | |
| PAN |  Panama | |
| PAR |  Paraguay | |
| PDY |  People's Democratic Republic of Yemen | Obsolete 1990 |
| PER |  Peru | |
| PHI |  Philippines | |
| PMI | Pacific Multi Islands | Pacific Minor Islands? |
| PNG |  Papua New Guinea | |
| PNL | ? | Partidului National Liberal (National Liberal Party of Romania)? |
| POL |  Poland | |
| POR |  Portugal | |
| POT | Portuguese Territories (UNEPTSA) | United Nations Training Programme for Southern Africa (Angola and Mozambique) |
| PRC |  Republic of the Congo | Formerly People's Republic of Congo (1970–1992) |
| PUE |  Puerto Rico | |
| QAT |  Qatar | |
| REU | Réunion | |
| ROK |  South Korea | |
| ROM |  Romania | |
| RUS |  Russia | |
| RWA |  Rwanda | |
| SAF |  South Africa | |
| SAH |  Western Sahara | |
| SAM |  Samoa | |
| SAU |  Saudi Arabia | |
| SEN |  Senegal | |
| SEY |  Seychelles | |
| SIK | Sikkim | Obsolete 1975 |
| SIL |  Sierra Leone | |
| SIN |  Singapore | |
| SLO |  Slovakia | |
| SNM |  San Marino | |
| SOI |  Solomon Islands | |
| SOM |  Somalia | |
| SPA |  Spain | |
| SPF | South Pacific Fund | |
| SRH |  Southern Rhodesia | Obsolete 1980; now Zimbabwe |
| SRL |  Sri Lanka | |
| SRV |  North Vietnam | Former Socialist Republic of Vietnam; obsolete 1977 |
| STH |  Saint Helena | |
| STK |  Saint Kitts and Nevis | |
| STL |  Saint Lucia | |
| STA | stateless | |
| STP |  São Tomé and Príncipe | |
| STV |  Saint Vincent and the Grenadines | |
| SUD |  Sudan | Also SUC for "Sudan (Suba)" |
| SUR |  Suriname | |
| SVN |  Slovenia | |
| SWA |  Swaziland | |
| SWE |  Sweden | |
| SWI |  Switzerland | |
| SWP | SWAPO | South West Africa People's Organization (Namibia) |
| SYR |  Syria | |
| TAJ |  Tajikistan | |
| TCI |  Turks and Caicos Islands | |
| THA |  Thailand | |
| TIM |  Timor-Leste | |
| TOG |  Togo | |
| TOK |  Tokelau | |
| TON |  Tonga | |
| TRI |  Trinidad and Tobago | |
| TTP |  Palau | Formerly the Trust Territory of the Pacific Islands (1986) |
| TUK |  Turkmenistan | |
| TUN |  Tunisia | |
| TUR |  Turkey | |
| TUV |  Tuvalu | |
| UAE |  United Arab Emirates | |
| UAF | Undistributed – Africa | |
| UAP | Undistributed – Asia and the Pacific | |
| UGA |  Uganda | |
| UKM |  United Kingdom | |
| UKR |  Ukraine | |
| ULA | Undistributed – Latin America and the Caribbean | |
| ULM | Undistributed – National Liberation Movements | |
| UPV |  Upper Volta | Obsolete 1984, now Burkina Faso |
| URT |  Tanzania | For "United Republic of Tanzania" |
| URU |  Uruguay | |
| USA |  United States | |
| USR |  Union of Soviet Socialist Republics | Obsolete 1992 |
| UVI |  U.S. Virgin Islands | |
| UZB |  Uzbekistan | |
| VAN |  Vanuatu | |
| VEN |  Venezuela | |
| VIE |  Vietnam | |
| WES | Western Samoa | Became Samoa in 1998 |
| WFI | Wallis and Futuna Islands | |
| WIR | West Irian | Obsolete 1973; now merged into Indonesia (Western New Guinea) |
| WPN | ? | Women's Peace Network (?) |
| YEM |  Yemen | |
| YUG |  Yugoslavia | Progressively reduced starting in 1993 |
| ZAI |  Democratic Republic of the Congo | Formerly Zaire (1997) |
| ZAM |  Zambia | |
| ZIM |  Zimbabwe | |
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