A three-letter combination, the same as the two-letter combination, is assigned to each country or region. The three-letter combinations are also known as the three-letter abbreviations or Alpha-3 codes, and they are internationally recognized. For example, the "USA" stands for the United States, and the "AUS" stands for Australia.
According to the United Nations, there are 194 sovereign states which include 193 member states of the United Nations (UN) and Vatican City, please refer to the list of countries and their capitals. The following list includes 194 sovereign states and their dependencies, as well as other disputed territories.
| # | Country | Abbrev | Notes |
|---|---|---|---|
| 1 | Afghanistan | AFG | United Nations |
| 2 | Aland Islands | ALA | Region of Finland |
| 3 | Albania | ALB | United Nations |
| 4 | Algeria | DZA | United Nations |
| 5 | American Samoa | ASM | U.S. Unincorporated Territory |
| 6 | Andorra | AND | United Nations |
| 7 | Angola | AGO | United Nations |
| 8 | Anguilla | AIA | British Overseas Territory |
| 9 | Antigua and Barbuda | ATG | United Nations |
| 10 | Argentina | ARG | United Nations |
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| 11 | Armenia | ARM | United Nations |
| 12 | Aruba | ABW | Country of the Netherlands |
| 13 | Australia | AUS | United Nations |
| 14 | Austria | AUT | United Nations |
| 15 | Azerbaijan | AZE | United Nations |
| 16 | Bahamas | BHS | United Nations |
| 17 | Bahrain | BHR | United Nations |
| 18 | Bangladesh | BGD | United Nations |
| 19 | Barbados | BRB | United Nations |
| 20 | Belarus | BLR | United Nations |
| 21 | Belgium | BEL | United Nations |
| 22 | Belize | BLZ | United Nations |
| 23 | Benin | BEN | United Nations |
| 24 | Bermuda | BMU | British Overseas Territory |
| 25 | Bhutan | BTN | United Nations |
| 26 | Bolivia | BOL | United Nations |
| 27 | Bonaire, Sint Eustatius and Saba | BES | Municipalities of the Netherlands |
| 28 | Bosnia and Herzegovina | BIH | United Nations |
| 29 | Botswana | BWA | United Nations |
| 30 | Bouvet Island | BVT | Norwegian dependency |
| 31 | Brazil | BRA | United Nations |
| 32 | British Indian Ocean Territory | IOT | British Overseas Territory |
| 33 | Brunei Darussalam | BRN | United Nations |
| 34 | Bulgaria | BGR | United Nations |
| 35 | Burkina Faso | BFA | United Nations |
| 36 | Burundi | BDI | United Nations |
| 37 | Cabo Verde | CPV | United Nations |
| 38 | Cambodia | KHM | United Nations |
| 39 | Cameroon | CMR | United Nations |
| 40 | Canada | CAN | United Nations |
| 41 | Cayman Islands | CYM | British Overseas Territory |
| 42 | Central African Republic | CAF | United Nations |
| 43 | Chad | TCD | United Nations |
| 44 | Chile | CHL | United Nations |
| 45 | China | CHN | United Nations |
| 46 | Christmas Island | CXR | Australian Territory |
| 47 | Cocos (Keeling) Islands | CCK | Australian Territory |
| 48 | Colombia | COL | United Nations |
| 49 | Comoros | COM | United Nations |
| 50 | Congo (Democratic Republic) | COD | United Nations |
| 51 | Congo (Republic) | COG | United Nations |
| 52 | Cook Islands | COK | Free Association with New Zealand |
| 53 | Costa Rica | CRI | United Nations |
| 54 | Côte D'Ivoire | CIV | United Nations |
| 55 | Croatia | HRV | United Nations |
| 56 | Cuba | CUB | United Nations |
| 57 | Curaçao | CUW | Country of the Netherlands |
| 58 | Cyprus | CYP | United Nations |
| 59 | Czech Republic | CZE | United Nations |
| 60 | Denmark | DNK | United Nations |
| 61 | Djibouti | DJI | United Nations |
| 62 | Dominica | DMA | United Nations |
| 63 | Dominican Republic | DOM | United Nations |
| 64 | Ecuador | ECU | United Nations |
| 65 | Egypt | EGY | United Nations |
| 66 | El Salvador | SLV | United Nations |
| 67 | Equatorial Guinea | GNQ | United Nations |
| 68 | Eritrea | ERI | United Nations |
| 69 | Estonia | EST | United Nations |
| 70 | Eswatini | SWZ | United Nations |
| 71 | Ethiopia | ETH | United Nations |
| 72 | Falkland Islands | FLK | British Overseas Territory |
| 73 | Faroe Islands | FRO | Part of Denmark |
| 74 | Fiji | FJI | United Nations |
| 75 | Finland | FIN | United Nations |
| 76 | France | FRA | United Nations |
| 77 | French Guiana | GUF | French Overseas Department |
| 78 | French Polynesia | PYF | French Overseas Collectivities |
| 79 | French Southern Territories | ATF | French Oversee Territory |
| 80 | Gabon | GAB | United Nations |
| 81 | Gambia (the) | GMB | United Nations |
| 82 | Georgia | GEO | United Nations |
| 83 | Germany | DEU | United Nations |
| 84 | Ghana | GHA | United Nations |
| 85 | Gibraltar | GIB | British Overseas Territory |
| 86 | Greece | GRC | United Nations |
| 87 | Greenland | GRL | Part of Denmark |
| 88 | Grenada | GRD | United Nations |
| 89 | Guadeloupe | GLP | French Overseas Department |
| 90 | Guam | GUM | U.S. Unincorporated Territory |
| 91 | Guatemala | GTM | United Nations |
| 92 | Guernsey | GGY | British Crown Dependency |
| 93 | Guinea | GIN | United Nations |
| 94 | Guinea-Bissau | GNB | United Nations |
| 95 | Guyana | GUY | United Nations |
| 96 | Haiti | HTI | United Nations |
| 97 | Heard Island and McDonald Islands | HMD | Australian Territory |
| 98 | Holy See | VAT | United Nations – Observe |
| 99 | Honduras | HND | United Nations |
| 100 | Hong Kong | HKG | Region of China |
| 101 | Hungary | HUN | United Nations |
| 102 | Iceland | ISL | United Nations |
| 103 | India | IND | United Nations |
| 104 | Indonesia | IDN | United Nations |
| 105 | Iran | IRN | United Nations |
| 106 | Iraq | IRQ | United Nations |
| 107 | Ireland | IRL | United Nations |
| 108 | Isle of Man | IMN | British Crown Dependency |
| 109 | Israel | ISR | United Nations |
| 110 | Italy | ITA | United Nations |
| 111 | Jamaica | JAM | United Nations |
| 112 | Japan | JPN | United Nations |
| 113 | Jersey | JEY | British Crown Dependency |
| 114 | Jordan | JOR | United Nations |
| 115 | Kazakhstan | KAZ | United Nations |
| 116 | Kenya | KEN | United Nations |
| 117 | Kiribati | KIR | United Nations |
| 118 | Kosovo | XKS | Partial International Recognition |
| 119 | Kuwait | KWT | United Nations |
| 120 | Kyrgyzstan | KGZ | United Nations |
| 121 | Laos | LAO | United Nations |
| 122 | Latvia | LVA | United Nations |
| 123 | Lebanon | LBN | United Nations |
| 124 | Lesotho | LSO | United Nations |
| 125 | Liberia | LBR | United Nations |
| 126 | Libya | LBY | United Nations |
| 127 | Liechtenstein | LIE | United Nations |
| 128 | Lithuania | LTU | United Nations |
| 129 | Luxembourg | LUX | United Nations |
| 130 | Macau | MAC | Region of China |
| 131 | Madagascar | MDG | United Nations |
| 132 | Malawi | MWI | United Nations |
| 133 | Malaysia | MYS | United Nations |
| 134 | Maldives | MDV | United Nations |
| 135 | Mali | MLI | United Nations |
| 136 | Malta | MLT | United Nations |
| 137 | Marshall Islands | MHL | United Nations |
| 138 | Martinique | MTQ | French Overseas Department |
| 139 | Mauritania | MRT | United Nations |
| 140 | Mauritius | MUS | United Nations |
| 141 | Mayotte | MYT | French Overseas Department |
| 142 | Mexico | MEX | United Nations |
| 143 | Micronesia (the Federated States of) | FSM | United Nations |
| 144 | Moldova | MDA | United Nations |
| 145 | Monaco | MCO | United Nations |
| 146 | Mongolia | MNG | United Nations |
| 147 | Montenegro | MNE | United Nations |
| 148 | Montserrat | MSR | British Overseas Territory |
| 149 | Morocco | MAR | United Nations |
| 150 | Mozambique | MOZ | United Nations |
| 151 | Myanmar | MMR | United Nations |
| 152 | Namibia | NAM | United Nations |
| 153 | Nauru | NRU | United Nations |
| 154 | Nepal | NPL | United Nations |
| 155 | Netherlands | NLD | United Nations |
| 156 | New Caledonia | NCL | French Overseas Territory |
| 157 | New Zealand | NZL | United Nations |
| 158 | Nicaragua | NIC | United Nations |
| 159 | Niger | NER | United Nations |
| 160 | Nigeria | NGA | United Nations |
| 161 | Niue | NIU | Free Association with New Zealand |
| 162 | Norfolk Island | NFK | Australian Territory |
| 163 | North Korea | PRK | United Nations |
| 164 | North Macedonia | MKD | United Nations |
| 165 | Northern Mariana Islands | MNP | U.S. Unincorporated Territory |
| 166 | Norway | NOR | United Nations |
| 167 | Oman | OMN | United Nations |
| 168 | Pakistan | PAK | United Nations |
| 169 | Palau | PLW | United Nations |
| 170 | Palestine | PSE | Partial International Recognition |
| 171 | Panama | PAN | United Nations |
| 172 | Papua New Guinea | PNG | United Nations |
| 173 | Paraguay | PRY | United Nations |
| 174 | Peru | PER | United Nations |
| 175 | Philippines | PHL | United Nations |
| 176 | Pitcairn | PCN | British Overseas Territory |
| 177 | Pitcairn Islands | PCN | British Overseas Territory |
| 178 | Poland | POL | United Nations |
| 179 | Portugal | PRT | United Nations |
| 180 | Puerto Rico | PRI | U.S. Unincorporated Territory |
| 181 | Qatar | QAT | United Nations |
| 182 | Reunion | REU | French Overseas Department |
| 183 | Romania | ROU | United Nations |
| 184 | Russia | RUS | United Nations |
| 185 | Rwanda | RWA | United Nations |
| 186 | Saint Barthelemy | BLM | French Overseas Collectivities |
| 187 | Saint Helena, Ascension and Tristan da Cunha | SHN | British Overseas Territory |
| 188 | Saint Kitts and Nevis | KNA | United Nations |
| 189 | Saint Lucia | LCA | United Nations |
| 190 | Saint Martin | MAF | French Overseas Collectivities |
| 191 | Saint Pierre and Miquelon | SPM | French Overseas Collectivities |
| 192 | Saint Vincent and the Grenadines | VCT | United Nations |
| 193 | Samoa | WSM | United Nations |
| 194 | San Marino | SMR | United Nations |
| 195 | Sao Tome and Principe | STP | United Nations |
| 196 | Saudi Arabia | SAU | United Nations |
| 197 | Senegal | SEN | United Nations |
| 198 | Serbia | SRB | United Nations |
| 199 | Seychelles | SYC | United Nations |
| 200 | Sierra Leone | SLE | United Nations |
| 201 | Singapore | SGP | United Nations |
| 202 | Sint Maarten | SXM | Country of the Netherlands |
| 203 | Slovakia | SVK | United Nations |
| 204 | Slovenia | SVN | United Nations |
| 205 | Solomon Islands | SLB | United Nations |
| 206 | Somalia | SOM | United Nations |
| 207 | South Africa | ZAF | United Nations |
| 208 | South Georgia and the South Sandwich Islands | SGS | British Overseas Territory |
| 209 | South Korea | KOR | United Nations |
| 210 | South Sudan | SSD | United Nations |
| 211 | Spain | ESP | United Nations |
| 212 | Sri Lanka | LKA | United Nations |
| 213 | Sudan | SDN | United Nations |
| 214 | Suriname | SUR | United Nations |
| 215 | Svalbard and Jan Mayen | SJM | Norway |
| 216 | Sweden | SWE | United Nations |
| 217 | Switzerland | CHE | United Nations |
| 218 | Syria | SYR | United Nations |
| 219 | Taiwan | TWN | Partial International Recognition |
| 220 | Tajikistan | TJK | United Nations |
| 221 | Tanzania | TZA | United Nations |
| 222 | Thailand | THA | United Nations |
| 223 | Timor-Leste | TLS | United Nations |
| 224 | Togo | TGO | United Nations |
| 225 | Tokelau | TKL | Dependent Territory of New Zealand |
| 226 | Tonga | TON | United Nations |
| 227 | Trinidad and Tobago | TTO | United Nations |
| 228 | Tunisia | TUN | United Nations |
| 229 | Turkey | TUR | United Nations |
| 230 | Turkmenistan | TKM | United Nations |
| 231 | Turks and Caicos Islands | TCA | British Overseas Territory |
| 232 | Tuvalu | TUV | United Nations |
| 233 | Uganda | UGA | United Nations |
| 234 | Ukraine | UKR | United Nations |
| 235 | United Arab Emirates | ARE | United Nations |
| 236 | United Kingdom | GBR | United Nations |
| 237 | United States | USA | United Nations |
| 238 | United States Minor Outlying Islands | UMI | United States |
| 239 | Uruguay | URY | United Nations |
| 240 | Uzbekistan | UZB | United Nations |
| 241 | Vanuatu | VUT | United Nations |
| 242 | Venezuela | VEN | United Nations |
| 243 | Viet Nam | VNM | United Nations |
| 244 | Virgin Islands (British) | VGB | British Overseas Territory |
| 245 | Virgin Islands (U.S.) | VIR | U.S. Unincorporated Territory |
| 246 | Wallis and Futuna | WLF | French Overseas Collectivities |
| 247 | Western Sahara | ESH | Disputed Territory |
| 248 | Yemen | YEM | United Nations |
| 249 | Zambia | ZMB | United Nations |
| 250 | Zimbabwe | ZWE | United Nations |