ISO 3166-1 alpha-2 codes are two-letter country codes defined in ISO 3166-1, part of the ISO 3166 standard published by the International Organization for Standardization (ISO), to represent countries, dependent territories, and special areas of geographical interest. They are the most widely used of the country codes published by ISO (the others being alpha-3 and numeric), and are used most prominently for the Internet's country code top-level domains (with a few exceptions). They are also used as country identifiers extending the postal code when appropriate within the international postal system for paper mail, and has replaced the previous one consisting one-letter codes. They were first included as part of the ISO 3166 standard in its first edition in 1974.
The following is a complete list of the 249 current officially assigned ISO 3166-1 alpha-2 codes, with the following columns:
Code: ISO 3166-1 alpha-2 code
- Country name: English short name officially used by the ISO 3166 Maintenance Agency (ISO 3166/MA)
- Year: Year when alpha-2 code was first officially assigned (1974, first edition of ISO 3166)
- ccTLD: Corresponding country code top-level domain (note that some are inactive); exceptions where another ccTLD is assigned for the country are shown in parentheses
- ISO 3166-2: Corresponding ISO 3166-2 codes
- Notes: Any unofficial notes
| Code | Country | Year | ccTLD | ISO3166-2 | Notes |
|---|---|---|---|---|---|
| AD | Andorra | 1974 | .ad | ||
| AE | United Arab Emirates | 1974 | .ae | ISO 3166-2:AE | |
| AF | Afghanistan | 1974 | .af | ISO 3166-2:AF | |
| AG | Antigua and Barbuda | 1974 | .ag | ISO 3166-2:AG | |
| AI | Anguilla | 1985 | .ai | ISO 3166-2:AI | AI previously represented French Afars and Issas |
| AL | Albania | 1974 | .al | ISO 3166-2:AL | |
| AM | Armenia | 1992 | .am | ISO 3166-2:AM | |
| AO | Angola | 1974 | .ao | ISO 3166-2:AO | |
| AQ | Antarctica | 1974 | .aq | ISO 3166-2:AQ | Covers the territories south of 60° south latitude |
| Code taken from name in French: Antarctique | |||||
| AR | Argentina | 1974 | .ar | ISO 3166-2:AR | |
| AS | American Samoa | 1974 | .as | ISO 3166-2:AS | |
| AT | Austria | 1974 | .at | ISO 3166-2:AT | |
| AU | Australia | 1974 | .au | ISO 3166-2:AU | Includes the Ashmore and Cartier Islands and the Coral Sea Islands |
| AW | Aruba | 1986 | .aw | ISO 3166-2:AW | |
| AX | Åland Islands | 2004 | .ax | ISO 3166-2:AX | An autonomous province of Finland |
| AZ | Azerbaijan | 1992 | .az | ISO 3166-2:AZ | |
| BA | Bosnia and Herzegovina | 1992 | .ba | ISO 3166-2:BA | |
| BB | Barbados | 1974 | .bb | ISO 3166-2:BB | |
| BD | Bangladesh | 1974 | .bd | ISO 3166-2:BD | |
| BE | Belgium | 1974 | .be | ISO 3166-2:BE | |
| BF | Burkina Faso | 1984 | .bf | ISO 3166-2:BF | Name changed from Upper Volta ( HV) |
| BG | Bulgaria | 1974 | .bg | ISO 3166-2:BG | |
| BH | Bahrain | 1974 | .bh | ISO 3166-2:BH | |
| BI | Burundi | 1974 | .bi | ISO 3166-2:BI | |
| BJ | Benin | 1977 | .bj | ISO 3166-2:BJ | Name changed from Dahomey ( DY) |
| BL | Saint Barthélemy | 2007 | .bl | ISO 3166-2:BL | |
| BM | Bermuda | 1974 | .bm | ISO 3166-2:BM | |
| BN | Brunei Darussalam | 1974 | .bn | ISO 3166-2:BN | Previous ISO country name: Brunei |
| BO | Bolivia (Plurinational State of) | 1974 | .bo | ISO 3166-2:BO | Previous ISO country name: Bolivia |
| BQ | Bonaire, Sint Eustatius and Saba | 2010 | .bq | ISO 3166-2:BQ | Consists of three Caribbean "special municipalities", which are part of the Netherlands proper: Bonaire, Sint Eustatius, and Saba (the BES Islands) |
| Previous ISO country name: Bonaire, Saint Eustatius and Saba | |||||
| BQ previously represented British Antarctic Territory | |||||
| BR | Brazil | 1974 | .br | ISO 3166-2:BR | |
| BS | Bahamas | 1974 | .bs | ISO 3166-2:BS | |
| BT | Bhutan | 1974 | .bt | ISO 3166-2:BT | |
| BV | Bouvet Island | 1974 | .bv | ISO 3166-2:BV | Belongs to Norway |
| BW | Botswana | 1974 | .bw | ISO 3166-2:BW | |
| BY | Belarus | 1974 | .by | ISO 3166-2:BY | Code taken from previous ISO country name: Byelorussian SSR (now assigned ISO 3166-3 code BYAA) |
| Code assigned as the country was already a UN member since 1945[1] | |||||
| BZ | Belize | 1974 | .bz | ISO 3166-2:BZ | |
| CA | Canada | 1974 | .ca | ISO 3166-2:CA | |
| CC | Cocos (Keeling) Islands | 1974 | .cc | ISO 3166-2:CC | |
| CD | Congo, Democratic Republic of the | 1997 | .cd | ISO 3166-2:CD | Name changed from Zaire ( ZR) |
| CF | Central African Republic | 1974 | .cf | ISO 3166-2:CF | |
| CG | Congo | 1974 | .cg | ISO 3166-2:CG | |
| CH | Switzerland | 1974 | .ch | ISO 3166-2:CH | Code taken from name in Latin: Confoederatio Helvetica |
| CI | Côte d'Ivoire | 1974 | .ci | ISO 3166-2:CI | ISO country name follows UN designation (common name and previous ISO country name: Ivory Coast) |
| CK | Cook Islands | 1974 | .ck | ISO 3166-2:CK | |
| CL | Chile | 1974 | .cl | ISO 3166-2:CL | |
| CM | Cameroon | 1974 | .cm | ISO 3166-2:CM | Previous ISO country name: Cameroon, United Republic of |
| CN | China | 1974 | .cn | ISO 3166-2:CN | |
| CO | Colombia | 1974 | .co | ISO 3166-2:CO | |
| CR | Costa Rica | 1974 | .cr | ISO 3166-2:CR | |
| CU | Cuba | 1974 | .cu | ISO 3166-2:CU | |
| CV | Cabo Verde | 1974 | .cv | ISO 3166-2:CV | ISO country name follows UN designation (common name and previous ISO country name: Cape Verde, another previous ISO country name: Cape Verde Islands) |
| CW | Curaçao | 2010 | .cw | ISO 3166-2:CW | |
| CX | Christmas Island | 1974 | .cx | ISO 3166-2:CX | |
| CY | Cyprus | 1974 | .cy | ISO 3166-2:CY | |
| CZ | Czechia | 1993 | .cz | ISO 3166-2:CZ | Previous ISO country name: Czech Republic |
| DE | Germany | 1974 | .de | ISO 3166-2:DE | Code taken from name in German: Deutschland |
| Code used for West Germany before 1990 (previous ISO country name: Germany, Federal Republic of) | |||||
| DJ | Djibouti | 1977 | .dj | ISO 3166-2:DJ | Name changed from French Afars and Issas ( AI) |
| DK | Denmark | 1974 | .dk | ISO 3166-2:DK | |
| DM | Dominica | 1974 | .dm | ISO 3166-2:DM | |
| DO | Dominican Republic | 1974 | .do | ISO 3166-2:DO | |
| DZ | Algeria | 1974 | .dz | ISO 3166-2:DZ | Code taken from name in Arabic الجزائر al-Djazā'ir, Algerian Arabic الدزاير al-Dzāyīr, or Berber ⴷⵣⴰⵢⵔ Dzayer |
| EC | Ecuador | 1974 | .ec | ISO 3166-2:EC | |
| EE | Estonia | 1992 | .ee | ISO 3166-2:EE | Code taken from name in Estonian: Eesti |
| EG | Egypt | 1974 | .eg | ISO 3166-2:EG | |
| EH | Western Sahara | 1974 | ISO 3166-2:EH | Previous ISO country name: Spanish Sahara (code taken from name in Spanish: Sahara español) | |
| .eh ccTLD has not been implemented.[2] | |||||
| ER | Eritrea | 1993 | .er | ISO 3166-2:ER | |
| ES | Spain | 1974 | .es | ISO 3166-2:ES | Code taken from name in Spanish: España |
| ET | Ethiopia | 1974 | .et | ISO 3166-2:ET | |
| FI | Finland | 1974 | .fi | ISO 3166-2:FI | |
| FJ | Fiji | 1974 | .fj | ISO 3166-2:FJ | |
| FK | Falkland Islands (Malvinas) | 1974 | .fk | ISO 3166-2:FK | ISO country name follows UN designation due to the Falkland Islands sovereignty dispute (local common name: Falkland Islands)[3] |
| FM | Micronesia (Federated States of) | 1986 | .fm | ISO 3166-2:FM | Previous ISO country name: Micronesia |
| FO | Faroe Islands | 1974 | .fo | ISO 3166-2:FO | Code taken from name in Faroese: Føroyar |
| FR | France | 1974 | .fr | ISO 3166-2:FR | Includes Clipperton Island |
| GA | Gabon | 1974 | .ga | ISO 3166-2:GA | |
| GB | United Kingdom of Great Britain and Northern Ireland | 1974 | .gb | ISO 3166-2:GB | Code taken from Great Britain (from official name: United Kingdom of Great Britain and Northern Ireland)[4] |
| (.uk) | Previous ISO country name: United Kingdom | ||||
| .uk is the primary ccTLD of the United Kingdom instead of .gb (see code UK, which is exceptionally reserved) | |||||
| GD | Grenada | 1974 | .gd | ISO 3166-2:GD | |
| GE | Georgia | 1992 | .ge | ISO 3166-2:GE | GE previously represented Gilbert and Ellice Islands |
| GF | French Guiana | 1974 | .gf | ISO 3166-2:GF | Code taken from name in French: Guyane française |
| GG | Guernsey | 2006 | .gg | ISO 3166-2:GG | A British Crown dependency |
| GH | Ghana | 1974 | .gh | ISO 3166-2:GH | |
| GI | Gibraltar | 1974 | .gi | ISO 3166-2:GI | |
| GL | Greenland | 1974 | .gl | ISO 3166-2:GL | |
| GM | Gambia | 1974 | .gm | ISO 3166-2:GM | |
| GN | Guinea | 1974 | .gn | ISO 3166-2:GN | |
| GP | Guadeloupe | 1974 | .gp | ISO 3166-2:GP | |
| GQ | Equatorial Guinea | 1974 | .gq | ISO 3166-2:GQ | Code taken from name in French: Guinée équatoriale |
| GR | Greece | 1974 | .gr | ISO 3166-2:GR | |
| GS | South Georgia and the South Sandwich Islands | 1993 | .gs | ISO 3166-2:GS | |
| GT | Guatemala | 1974 | .gt | ISO 3166-2:GT | |
| GU | Guam | 1974 | .gu | ISO 3166-2:GU | |
| GW | Guinea-Bissau | 1974 | .gw | ISO 3166-2:GW | |
| GY | Guyana | 1974 | .gy | ISO 3166-2:GY | |
| HK | Hong Kong | 1974 | .hk | ISO 3166-2:HK | |
| HM | Heard Island and McDonald Islands | 1974 | .hm | ISO 3166-2:HM | |
| HN | Honduras | 1974 | .hn | ISO 3166-2:HN | |
| HR | Croatia | 1992 | .hr | ISO 3166-2:HR | Code taken from name in Croatian: Hrvatska |
| HT | Haiti | 1974 | .ht | ISO 3166-2:HT | |
| HU | Hungary | 1974 | .hu | ISO 3166-2:HU | |
| ID | Indonesia | 1974 | .id | ISO 3166-2:ID | |
| IE | Ireland | 1974 | .ie | ISO 3166-2:IE | |
| IL | Israel | 1974 | .il | ISO 3166-2:IL | |
| IM | Isle of Man | 2006 | .im | ISO 3166-2:IM | A British Crown dependency |
| IN | India | 1974 | .in | ISO 3166-2:IN | |
| IO | British Indian Ocean Territory | 1974 | .io | ISO 3166-2:IO | |
| IQ | Iraq | 1974 | .iq | ISO 3166-2:IQ | |
| IR | Iran (Islamic Republic of) | 1974 | .ir | ISO 3166-2:IR | Previous ISO country name: Iran |
| IS | Iceland | 1974 | .is | ISO 3166-2:IS | Code taken from name in Icelandic: Ísland |
| IT | Italy | 1974 | .it | ISO 3166-2:IT | |
| JE | Jersey | 2006 | .je | ISO 3166-2:JE | A British Crown dependency |
| JM | Jamaica | 1974 | .jm | ISO 3166-2:JM | |
| JO | Jordan | 1974 | .jo | ISO 3166-2:JO | |
| JP | Japan | 1974 | .jp | ISO 3166-2:JP | |
| KE | Kenya | 1974 | .ke | ISO 3166-2:KE | |
| KG | Kyrgyzstan | 1992 | .kg | ISO 3166-2:KG | |
| KH | Cambodia | 1974 | .kh | ISO 3166-2:KH | Code taken from former name: Khmer Republic |
| Previous ISO country name: Kampuchea, Democratic | |||||
| KI | Kiribati | 1979 | .ki | ISO 3166-2:KI | Name changed from Gilbert Islands ( GE) |
| KM | Comoros | 1974 | .km | ISO 3166-2:KM | Code taken from name in Comorian: Komori |
| Previous ISO country name: Comoro Islands | |||||
| KN | Saint Kitts and Nevis | 1974 | .kn | ISO 3166-2:KN | Previous ISO country name: Saint Kitts-Nevis-Anguilla |
| KP | Korea (Democratic People's Republic of) | 1974 | .kp | ISO 3166-2:KP | ISO country name follows UN designation (common name: North Korea) |
| KR | Korea, Republic of | 1974 | .kr | ISO 3166-2:KR | ISO country name follows UN designation (common name: South Korea) |
| KW | Kuwait | 1974 | .kw | ISO 3166-2:KW | |
| KY | Cayman Islands | 1974 | .ky | ISO 3166-2:KY | |
| KZ | Kazakhstan | 1992 | .kz | ISO 3166-2:KZ | Previous ISO country name: Kazakstan |
| LA | Lao People's Democratic Republic | 1974 | .la | ISO 3166-2:LA | ISO country name follows UN designation (common name and previous ISO country name: Laos) |
| LB | Lebanon | 1974 | .lb | ISO 3166-2:LB | |
| LC | Saint Lucia | 1974 | .lc | ISO 3166-2:LC | |
| LI | Liechtenstein | 1974 | .li | ISO 3166-2:LI | |
| LK | Sri Lanka | 1974 | .lk | ISO 3166-2:LK | |
| LR | Liberia | 1974 | .lr | ISO 3166-2:LR | |
| LS | Lesotho | 1974 | .ls | ISO 3166-2:LS | |
| LT | Lithuania | 1992 | .lt | ISO 3166-2:LT | |
| LU | Luxembourg | 1974 | .lu | ISO 3166-2:LU | |
| LV | Latvia | 1992 | .lv | ISO 3166-2:LV | |
| LY | Libya | 1974 | .ly | ISO 3166-2:LY | Previous ISO country name: Libyan Arab Jamahiriya |
| MA | Morocco | 1974 | .ma | ISO 3166-2:MA | Code taken from name in French: Maroc |
| MC | Monaco | 1974 | .mc | ISO 3166-2:MC | |
| MD | Moldova, Republic of | 1992 | .md | ISO 3166-2:MD | Previous ISO country name: Moldova (briefly from 2008 to 2009) |
| ME | Montenegro | 2006 | .me | ISO 3166-2:ME | |
| MF | Saint Martin (French part) | 2007 | .mf | ISO 3166-2:MF | The Dutch part of Saint Martin island is assigned code SX |
| MG | Madagascar | 1974 | .mg | ISO 3166-2:MG | |
| MH | Marshall Islands | 1986 | .mh | ISO 3166-2:MH | |
| MK | North Macedonia | 1993 | .mk | ISO 3166-2:MK | Code taken from name in Macedonian: Severna Makedonija |
| Previous ISO country name: Macedonia, the former Yugoslav Republic of (designated as such due to Macedonia naming dispute) | |||||
| ML | Mali | 1974 | .ml | ISO 3166-2:ML | |
| MM | Myanmar | 1989 | .mm | ISO 3166-2:MM | Name changed from Burma ( BU) |
| MN | Mongolia | 1974 | .mn | ISO 3166-2:MN | |
| MO | Macao | 1974 | .mo | ISO 3166-2:MO | Previous ISO country name: Macau |
| MP | Northern Mariana Islands | 1986 | .mp | ISO 3166-2:MP | |
| MQ | Martinique | 1974 | .mq | ISO 3166-2:MQ | |
| MR | Mauritania | 1974 | .mr | ISO 3166-2:MR | |
| MS | Montserrat | 1974 | .ms | ISO 3166-2:MS | |
| MT | Malta | 1974 | .mt | ISO 3166-2:MT | |
| MU | Mauritius | 1974 | .mu | ISO 3166-2:MU | |
| MV | Maldives | 1974 | .mv | ISO 3166-2:MV | |
| MW | Malawi | 1974 | .mw | ISO 3166-2:MW | |
| MX | Mexico | 1974 | .mx | ISO 3166-2:MX | |
| MY | Malaysia | 1974 | .my | ISO 3166-2:MY | |
| MZ | Mozambique | 1974 | .mz | ISO 3166-2:MZ | |
| NA | Namibia | 1974 | .na | ISO 3166-2:NA | |
| NC | New Caledonia | 1974 | .nc | ISO 3166-2:NC | |
| NE | Niger | 1974 | .ne | ISO 3166-2:NE | |
| NF | Norfolk Island | 1974 | .nf | ISO 3166-2:NF | |
| NG | Nigeria | 1974 | .ng | ISO 3166-2:NG | |
| NI | Nicaragua | 1974 | .ni | ISO 3166-2:NI | |
| NL | Netherlands | 1974 | .nl | ISO 3166-2:NL | Officially includes the islands Bonaire, Saint Eustatius and Saba, which also have code BQ in ISO 3166-1. Within ISO 3166-2, Aruba (AW), Curaçao (CW), and Sint Maarten (SX) are also coded as subdivisions of NL.[5] |
| NO | Norway | 1974 | .no | ISO 3166-2:NO | |
| NP | Nepal | 1974 | .np | ISO 3166-2:NP | |
| NR | Nauru | 1974 | .nr | ISO 3166-2:NR | |
| NU | Niue | 1974 | .nu | ISO 3166-2:NU | Previous ISO country name: Niue Island |
| NZ | New Zealand | 1974 | .nz | ISO 3166-2:NZ | |
| OM | Oman | 1974 | .om | ISO 3166-2:OM | |
| PA | Panama | 1974 | .pa | ISO 3166-2:PA | |
| PE | Peru | 1974 | .pe | ISO 3166-2:PE | |
| PF | French Polynesia | 1974 | .pf | ISO 3166-2:PF | Code taken from name in French: Polynésie française |
| PG | Papua New Guinea | 1974 | .pg | ISO 3166-2:PG | |
| PH | Philippines | 1974 | .ph | ISO 3166-2:PH | |
| PK | Pakistan | 1974 | .pk | ISO 3166-2:PK | |
| PL | Poland | 1974 | .pl | ISO 3166-2:PL | |
| PM | Saint Pierre and Miquelon | 1974 | .pm | ISO 3166-2:PM | |
| PN | Pitcairn | 1974 | .pn | ISO 3166-2:PN | Previous ISO country name: Pitcairn Islands |
| PR | Puerto Rico | 1974 | .pr | ISO 3166-2:PR | |
| PS | Palestine, State of | 1999 | .ps | ISO 3166-2:PS | Previous ISO country name: Palestinian Territory, Occupied |
| Consists of the West Bank and the Gaza Strip | |||||
| PT | Portugal | 1974 | .pt | ISO 3166-2:PT | |
| PW | Palau | 1986 | .pw | ISO 3166-2:PW | |
| PY | Paraguay | 1974 | .py | ISO 3166-2:PY | |
| QA | Qatar | 1974 | .qa | ISO 3166-2:QA | |
| RE | Réunion | 1974 | .re | ISO 3166-2:RE | |
| RO | Romania | 1974 | .ro | ISO 3166-2:RO | |
| RS | Serbia | 2006 | .rs | ISO 3166-2:RS | Republic of Serbia |
| RU | Russian Federation | 1992 | .ru | ISO 3166-2:RU | ISO country name follows UN designation (common name: Russia) |
| RW | Rwanda | 1974 | .rw | ISO 3166-2:RW | |
| SA | Saudi Arabia | 1974 | .sa | ISO 3166-2:SA | |
| SB | Solomon Islands | 1974 | .sb | ISO 3166-2:SB | Code taken from former name: British Solomon Islands |
| SC | Seychelles | 1974 | .sc | ISO 3166-2:SC | |
| SD | Sudan | 1974 | .sd | ISO 3166-2:SD | |
| SE | Sweden | 1974 | .se | ISO 3166-2:SE | |
| SG | Singapore | 1974 | .sg | ISO 3166-2:SG | |
| SH | Saint Helena, Ascension and Tristan da Cunha | 1974 | .sh | ISO 3166-2:SH | Previous ISO country name: Saint Helena |
| SI | Slovenia | 1992 | .si | ISO 3166-2:SI | |
| SJ | Svalbard and Jan Mayen | 1974 | .sj | ISO 3166-2:SJ | Previous ISO name: Svalbard and Jan Mayen Islands |
| Consists of two arctic territories of Norway: Svalbard and Jan Mayen | |||||
| SK | Slovakia | 1993 | .sk | ISO 3166-2:SK | SK previously represented Sikkim |
| SL | Sierra Leone | 1974 | .sl | ISO 3166-2:SL | |
| SM | San Marino | 1974 | .sm | ISO 3166-2:SM | |
| SN | Senegal | 1974 | .sn | ISO 3166-2:SN | |
| SO | Somalia | 1974 | .so | ISO 3166-2:SO | |
| SR | Suriname | 1974 | .sr | ISO 3166-2:SR | Previous ISO country name: Surinam |
| SS | South Sudan | 2011 | .ss | ISO 3166-2:SS | |
| ST | Sao Tome and Principe | 1974 | .st | ISO 3166-2:ST | |
| SV | El Salvador | 1974 | .sv | ISO 3166-2:SV | |
| SX | Sint Maarten (Dutch part) | 2010 | .sx | ISO 3166-2:SX | The French part of Saint Martin island is assigned code MF |
| SY | Syrian Arab Republic | 1974 | .sy | ISO 3166-2:SY | ISO country name follows UN designation (common name and previous ISO country name: Syria) |
| SZ | Eswatini | 1974 | .sz | ISO 3166-2:SZ | Previous ISO country name: Swaziland |
| TC | Turks and Caicos Islands | 1974 | .tc | ISO 3166-2:TC | |
| TD | Chad | 1974 | .td | ISO 3166-2:TD | Code taken from name in French: Tchad |
| TF | French Southern Territories | 1979 | .tf | ISO 3166-2:TF | Covers the French Southern and Antarctic Lands except Adélie Land |
| Code taken from name in French: Terres australes françaises | |||||
| TG | Togo | 1974 | .tg | ISO 3166-2:TG | |
| TH | Thailand | 1974 | .th | ISO 3166-2:TH | |
| TJ | Tajikistan | 1992 | .tj | ISO 3166-2:TJ | |
| TK | Tokelau | 1974 | .tk | ISO 3166-2:TK | Previous ISO country name: Tokelau Islands |
| TL | Timor-Leste | 2002 | .tl | ISO 3166-2:TL | Name changed from East Timor ( TP) |
| TM | Turkmenistan | 1992 | .tm | ISO 3166-2:TM | |
| TN | Tunisia | 1974 | .tn | ISO 3166-2:TN | |
| TO | Tonga | 1974 | .to | ISO 3166-2:TO | |
| TR | Turkey | 1974 | .tr | ISO 3166-2:TR | |
| TT | Trinidad and Tobago | 1974 | .tt | ISO 3166-2:TT | |
| TV | Tuvalu | 1977 | .tv | ISO 3166-2:TV | |
| TW | Taiwan, Province of China | 1974 | .tw | ISO 3166-2:TW | Covers the current jurisdiction of the Republic of China |
| ISO country name follows UN designation (due to political status of Taiwan within the UN)[4] (common name: Taiwan) | |||||
| TZ | Tanzania, United Republic of | 1974 | .tz | ISO 3166-2:TZ | |
| UA | Ukraine | 1974 | .ua | ISO 3166-2:UA | Previous ISO country name: Ukrainian SSR |
| Code assigned as the country was already a UN member since 1945 | |||||
| UG | Uganda | 1974 | .ug | ISO 3166-2:UG | |
| UM | United States Minor Outlying Islands | 1986 | ISO 3166-2:UM | Consists of nine minor insular areas of the United States: Baker Island, Howland Island, Jarvis Island, Johnston Atoll, Kingman Reef, Midway Islands, Navassa Island, Palmyra Atoll, and Wake Island | |
| .um ccTLD was revoked in 2007 | |||||
| US | United States of America | 1974 | .us | ISO 3166-2:US | Previous ISO country name: United States |
| UY | Uruguay | 1974 | .uy | ISO 3166-2:UY | |
| UZ | Uzbekistan | 1992 | .uz | ISO 3166-2:UZ | |
| VA | Holy See | 1974 | .va | ISO 3166-2:VA | Covers Vatican City, territory of the Holy See |
| Previous ISO country names: Vatican City State (Holy See) and Holy See (Vatican City State) | |||||
| VC | Saint Vincent and the Grenadines | 1974 | .vc | ISO 3166-2:VC | |
| VE | Venezuela (Bolivarian Republic of) | 1974 | .ve | ISO 3166-2:VE | Previous ISO country name: Venezuela |
| VG | Virgin Islands (British) | 1974 | .vg | ISO 3166-2:VG | |
| VI | Virgin Islands (U.S.) | 1974 | .vi | ISO 3166-2:VI | |
| VN | Viet Nam | 1974 | .vn | ISO 3166-2:VN | ISO country name follows UN designation (common name: Vietnam) |
| Code used for Republic of Viet Nam (common name: South Vietnam) before 1977 | |||||
| VU | Vanuatu | 1980 | .vu | ISO 3166-2:VU | Name changed from New Hebrides ( NH) |
| WF | Wallis and Futuna | 1974 | .wf | ISO 3166-2:WF | Previous ISO country name: Wallis and Futuna Islands |
| WS | Samoa | 1974 | .ws | ISO 3166-2:WS | Code taken from former name: Western Samoa |
| YE | Yemen | 1974 | .ye | ISO 3166-2:YE | Previous ISO country name: Yemen, Republic of (for three years after the unification) |
| Code used for North Yemen before 1990 | |||||
| YT | Mayotte | 1993 | .yt | ISO 3166-2:YT | |
| XK | Kosovo | 2008 | .xk | ISO3166-2:XK | Since 2008 is Kosovo an indpendent country and not a part of Serbia anymore |
| XK is a "user assigned" ISO 3166 code not designated by the standard, but used by the European Commission, Switzerland, the Deutsche Bundesbank and other organisations. However, ISO 3166-2:RS-KM remains in use. | |||||
| ZA | South Africa | 1974 | .za | ISO 3166-2:ZA | Code taken from name in Dutch: Zuid-Afrika |
| ZM | Zambia | 1974 | .zm | ISO 3166-2:ZM | |
| ZW | Zimbabwe | 1980 | .zw | ISO 3166-2:ZW | Name changed from Southern Rhodesia ( RH) |