在 Windows 系统中其实微软对于每个国家都定义的区域语言，虽然我们普通用户可能感觉不到这些东西，但是作为开发人员来说，国家语言代码是会经常使用到的。毕竟这是微软统一规范的区域语言，所以如果您想在开发的程序中增加多国语言或者想开发多国语言的应用程序，那么区域语言代码是一定会使用到的。
| 国家区域 | 语言代码 | LCID | LCID 十进制 | LCID 十六进制 | Codepage |
| Afrikaans | af | af | 1078 | 436 | 1252 |
| Albanian | sq | sq | 1052 | 1250 | |
| Amharic | am | am | 1118 | ||
| Arabic – Algeria | ar | ar-dz | 5121 | 1401 | 1256 |
| Arabic – Bahrain | ar | ar-bh | 15361 | 1256 | |
| Arabic – Egypt | ar | ar-eg | 3073 | 1256 | |
| Arabic – Iraq | ar | ar-iq | 2049 | 801 | 1256 |
| Arabic – Jordan | ar | ar-jo | 11265 | 1256 | |
| Arabic – Kuwait | ar | ar-kw | 13313 | 3401 | 1256 |
| Arabic – Lebanon | ar | ar-lb | 12289 | 3001 | 1256 |
| Arabic – Libya | ar | ar-ly | 4097 | 1001 | 1256 |
| Arabic – Morocco | ar | ar-ma | 6145 | 1801 | 1256 |
| Arabic – Oman | ar | ar-om | 8193 | 2001 | 1256 |
| Arabic – Qatar | ar | ar-qa | 16385 | 4001 | 1256 |
| Arabic – Saudi Arabia | ar | ar-sa | 1025 | 401 | 1256 |
| Arabic – Syria | ar | ar-sy | 10241 | 2801 | 1256 |
| Arabic – Tunisia | ar | ar-tn | 7169 | 1256 | |
| Arabic – United Arab Emirates | ar | ar-ae | 14337 | 3801 | 1256 |
| Arabic – Yemen | ar | ar-ye | 9217 | 2401 | 1256 |
| Armenian | hy | hy | 1067 | ||
| Assamese | as | as | 1101 | ||
| Azeri – Cyrillic | az | az-az | 2092 | 1251 | |
| Azeri – Latin | az | az-az | 1068 | 1254 | |
| Basque | eu | eu | 1069 | 1252 | |
| Belarusian | be | be | 1059 | 423 | 1251 |
| Bengali – Bangladesh | bn | bn | 2117 | 845 | |
| Bengali – India | bn | bn | 1093 | 445 | |
| Bosnian | bs | bs | 5146 | ||
| Bulgarian | bg | bg | 1026 | 402 | 1251 |
| Burmese | my | my | 1109 | 455 | |
| Catalan | ca | ca | 1027 | 403 | 1252 |
| Chinese – China | zh | zh-cn | 2052 | 804 | |
| Chinese – Hong Kong SAR | zh | zh-hk | 3076 | ||
| Chinese – Macau SAR | zh | zh-mo | 5124 | 1404 | |
| Chinese – Singapore | zh | zh-sg | 4100 | 1004 | |
| Chinese – Taiwan | zh | zh-tw | 1028 | 404 | |
| Croatian | hr | hr | 1050 | 1250 | |
| Czech | cs | cs | 1029 | 405 | 1250 |
| Danish | da | da | 1030 | 406 | 1252 |
| Divehi | Dhivehi | Maldivian | dv | dv | |
| Dutch – Belgium | nl | nl-be | 2067 | 813 | 1252 |
| Dutch – Netherlands | nl | nl-nl | 1043 | 413 | 1252 |
| Edo | 1126 | 466 | |||
| English – Australia | en | en-au | 3081 | 1252 | |
| English – Belize | en | en-bz | 10249 | 2809 | 1252 |
| English – Canada | en | en-ca | 4105 | 1009 | 1252 |
| English – Caribbean | en | en-cb | 9225 | 2409 | 1252 |
| English – Great Britain | en | en-gb | 2057 | 809 | 1252 |
| English – India | en | en-in | 16393 | 4009 | |
| English – Ireland | en | en-ie | 6153 | 1809 | 1252 |
| English – Jamaica | en | en-jm | 8201 | 2009 | 1252 |
| English – New Zealand | en | en-nz | 5129 | 1409 | 1252 |
| English – Phillippines | en | en-ph | 13321 | 3409 | 1252 |
| English – Southern Africa | en | en-za | 7177 | 1252 | |
| English – Trinidad | en | en-tt | 11273 | 1252 | |
| English – United States | en | en-us | 1033 | 409 | 1252 |
| English – Zimbabwe | en | 12297 | 3009 | 1252 | |
| Estonian | et | et | 1061 | 425 | 1257 |
| FYRO Macedonia | mk | mk | 1071 | 1251 | |
| Faroese | fo | fo | 1080 | 438 | 1252 |
| Farsi – Persian | fa | fa | 1065 | 429 | 1256 |
| Filipino | 1124 | 464 | |||
| Finnish | fi | fi | 1035 | 1252 | |
| French – Belgium | fr | fr-be | 2060 | 1252 | |
| French – Cameroon | fr | 11276 | |||
| French – Canada | fr | fr-ca | 3084 | 1252 | |
| French – Congo | fr | 9228 | |||
| French – Cote d’Ivoire | fr | 12300 | |||
| French – France | fr | fr-fr | 1036 | 1252 | |
| French – Luxembourg | fr | fr-lu | 5132 | 1252 | |
| French – Mali | fr | 13324 | |||
| French – Monaco | fr | 6156 | 1252 | ||
| French – Morocco | fr | 14348 | |||
| French – Senegal | fr | 10252 | |||
| French – Switzerland | fr | fr-ch | 4108 | 1252 | |
| French – West Indies | fr | 7180 | |||
| Frisian – Netherlands | 1122 | 462 | |||
| Gaelic – Ireland | gd | gd-ie | 2108 | ||
| Gaelic – Scotland | gd | gd | 1084 | ||
| Galician | gl | 1110 | 456 | 1252 | |
| Georgian | ka | 1079 | 437 | ||
| German – Austria | de | de-at | 3079 | 1252 | |
| German – Germany | de | de-de | 1031 | 407 | 1252 |
| German – Liechtenstein | de | de-li | 5127 | 1407 | 1252 |
| German – Luxembourg | de | de-lu | 4103 | 1007 | 1252 |
| German – Switzerland | de | de-ch | 2055 | 807 | 1252 |
| Greek | el | el | 1032 | 408 | 1253 |
| Guarani – Paraguay | gn | gn | 1140 | 474 | |
| Gujarati | gu | gu | 1095 | 447 | |
| HID (Human Interface Device) | 1279 | ||||
| Hebrew | he | he | 1037 | 1255 | |
| Hindi | hi | hi | 1081 | 439 | |
| Hungarian | hu | hu | 1038 | 1250 | |
| Icelandic | is | is | 1039 | 1252 | |
| Igbo – Nigeria | 1136 | 470 | |||
| Indonesian | id | id | 1057 | 421 | 1252 |
| Italian – Italy | it | it-it | 1040 | 410 | 1252 |
| Italian – Switzerland | it | it-ch | 2064 | 810 | 1252 |
| Japanese | ja | ja | 1041 | 411 | |
| Kannada | kn | kn | 1099 | ||
| Kashmiri | ks | ks | 1120 | 460 | |
| Kazakh | kk | kk | 1087 | 1251 | |
| Khmer | km | km | 1107 | 453 | |
| Konkani | 1111 | 457 | |||
| Korean | ko | ko | 1042 | 412 | |
| Kyrgyz – Cyrillic | 1088 | 440 | 1251 | ||
| Lao | lo | lo | 1108 | 454 | |
| Latin | la | la | 1142 | 476 | |
| Latvian | lv | lv | 1062 | 426 | 1257 |
| Lithuanian | lt | lt | 1063 | 427 | 1257 |
| Malay – Brunei | ms | ms-bn | 2110 | 1252 | |
| Malay – Malaysia | ms | ms-my | 1086 | 1252 | |
| Malayalam | ml | ml | 1100 | ||
| Maltese | mt | mt | 1082 | ||
| Manipuri | 1112 | 458 | |||
| Maori | mi | mi | 1153 | 481 | |
| Marathi | mr | mr | 1102 | ||
| Mongolian | mn | mn | 2128 | 850 | |
| Mongolian | mn | mn | 1104 | 450 | 1251 |
| Nepali | ne | ne | 1121 | 461 | |
| Norwegian – Bokml | nb | nb-no | 1044 | 414 | 1252 |
| Norwegian – Nynorsk | nn | no-no | 2068 | 814 | 1252 |
| Oriya | or | or | 1096 | 448 | |
| Polish | pl | pl | 1045 | 415 | 1250 |
| Portuguese – Brazil | pt | pt-br | 1046 | 416 | 1252 |
| Portuguese – Portugal | pt | pt-pt | 2070 | 816 | 1252 |
| Punjabi | pa | pa | 1094 | 446 | |
| Raeto-Romance | rm | rm | 1047 | 417 | |
| Romanian – Moldova | ro | ro-mo | 2072 | 818 | |
| Romanian – Romania | ro | ro | 1048 | 418 | 1250 |
| Russian | ru | ru | 1049 | 419 | 1251 |
| Russian – Moldova | ru | ru-mo | 2073 | 819 | |
| Sami Lappish | 1083 | ||||
| Sanskrit | sa | sa | 1103 | ||
| Serbian – Cyrillic | sr | sr-sp | 3098 | 1251 | |
| Serbian – Latin | sr | sr-sp | 2074 | 1250 | |
| Sesotho (Sutu) | 1072 | 430 | |||
| Setsuana | tn | tn | 1074 | 432 | |
| Sindhi | sd | sd | 1113 | 459 | |
| Sinhala | Sinhalese | si | si | 1115 | |
| Slovak | sk | sk | 1051 | 1250 | |
| Slovenian | sl | sl | 1060 | 424 | 1250 |
| Somali | so | so | 1143 | 477 | |
| Sorbian | sb | sb | 1070 | ||
| Spanish – Argentina | es | es-ar | 11274 | 1252 | |
| Spanish – Bolivia | es | es-bo | 16394 | 1252 | |
| Spanish – Chile | es | es-cl | 13322 | 1252 | |
| Spanish – Colombia | es | es-co | 9226 | 1252 | |
| Spanish – Costa Rica | es | es-cr | 5130 | 1252 | |
| Spanish – Dominican Republic | es | es-do | 7178 | 1252 | |
| Spanish – Ecuador | es | es-ec | 12298 | 1252 | |
| Spanish – El Salvador | es | es-sv | 17418 | 1252 | |
| Spanish – Guatemala | es | es-gt | 4106 | 1252 | |
| Spanish – Honduras | es | es-hn | 18442 | 1252 | |
| Spanish – Mexico | es | es-mx | 2058 | 1252 | |
| Spanish – Nicaragua | es | es-ni | 19466 | 1252 | |
| Spanish – Panama | es | es-pa | 6154 | 1252 | |
| Spanish – Paraguay | es | es-py | 15370 | 1252 | |
| Spanish – Peru | es | es-pe | 10250 | 1252 | |
| Spanish – Puerto Rico | es | es-pr | 20490 | 1252 | |
| Spanish – Spain (Traditional) | es | es-es | 1034 | 1252 | |
| Spanish – Uruguay | es | es-uy | 14346 | 1252 | |
| Spanish – Venezuela | es | es-ve | 8202 | 1252 | |
| Swahili | sw | sw | 1089 | 441 | 1252 |
| Swedish – Finland | sv | sv-fi | 2077 | 1252 | |
| Swedish – Sweden | sv | sv-se | 1053 | 1252 | |
| Syriac | 1114 | ||||
| Tajik | tg | tg | 1064 | 428 | |
| Tamil | ta | ta | 1097 | 449 | |
| Tatar | tt | tt | 1092 | 444 | 1251 |
| Telugu | te | te | 1098 | ||
| Thai | th | th | 1054 | ||
| Tibetan | bo | bo | 1105 | 451 | |
| Tsonga | ts | ts | 1073 | 431 | |
| Turkish | tr | tr | 1055 | 1254 | |
| Turkmen | tk | tk | 1090 | 442 | |
| Ukrainian | uk | uk | 1058 | 422 | 1251 |
| Unicode | UTF-8 | 0 | |||
| Urdu | ur | ur | 1056 | 420 | 1256 |
| Uzbek – Cyrillic | uz | uz-uz | 2115 | 843 | 1251 |
| Uzbek – Latin | uz | uz-uz | 1091 | 443 | 1254 |
| Venda | 1075 | 433 | |||
| Vietnamese | vi | vi | 1066 | 1258 | |
| Welsh | cy | cy | 1106 | 452 | |
| Xhosa | xh | xh | 1076 | 434 | |
| Yiddish | yi | yi | 1085 | ||
| Zulu | zu | zu | 1077 | 435 | |
