Facebookの 言語コード・国コード（locale）の一覧表を見つけたのでメモ。
| Locale | Value |
|---|---|
| Afrikaans | af_ZA |
| Albanian | sq_AL |
| Arabic | ar_AR |
| Armenian | hy_AM |
| Aymara | ay_BO |
| Azeri | az_AZ |
| Basque | eu_ES |
| Belarusian | be_BY |
| Bengali | bn_IN |
| Bosnian | bs_BA |
| Bulgarian | bg_BG |
| Catalan | ca_ES |
| Cherokee | ck_US |
| Croatian | hr_HR |
| Czech | cs_CZ |
| Danish | da_DK |
| Dutch | nl_NL |
| Dutch (Belgi?) | nl_BE |
| English (Pirate) | en_PI |
| English (UK) | en_GB |
| English (Upside Down) | en_UD |
| English (US) | en_US |
| Esperanto | eo_EO |
| Estonian | et_EE |
| Faroese | fo_FO |
| Filipino | tl_PH |
| Finnish | fi_FI |
| Finnish (test) | fb_FI |
| French (Canada) | fr_CA |
| French (France) | fr_FR |
| Galician | gl_ES |
| Georgian | ka_GE |
| German | de_DE |
| Greek | el_GR |
| Guaran? | gn_PY |
| Gujarati | gu_IN |
| Hebrew | he_IL |
| Hindi | hi_IN |
| Hungarian | hu_HU |
| Icelandic | is_IS |
| Indonesian | id_ID |
| Irish | ga_IE |
| Italian | it_IT |
| Japanese | ja_JP |
| Javanese | jv_ID |
| Kannada | kn_IN |
| Kazakh | kk_KZ |
| Khmer | km_KH |
| Klingon | tl_ST |
| Korean | ko_KR |
| Kurdish | ku_TR |
| Latin | la_VA |
| Latvian | lv_LV |
| Leet Speak | fb_LT |
| Limburgish | li_NL |
| Lithuanian | lt_LT |
| Macedonian | mk_MK |
| Malagasy | mg_MG |
| Malay | ms_MY |
| Malayalam | ml_IN |
| Maltese | mt_MT |
| Marathi | mr_IN |
| Mongolian | mn_MN |
| Nepali | ne_NP |
| Northern S?mi | se_NO |
| Norwegian (bokmal) | nb_NO |
| Norwegian (nynorsk) | nn_NO |
| Pashto | ps_AF |
| Persian | fa_IR |
| Polish | pl_PL |
| Portuguese (Brazil) | pt_BR |
| Portuguese (Portugal) | pt_PT |
| Punjabi | pa_IN |
| Quechua | qu_PE |
| Romanian | ro_RO |
| Romansh | rm_CH |
| Russian | ru_RU |
| Sanskrit | sa_IN |
| Serbian | sr_RS |
| Simplified Chinese (China) | zh_CN |
| Slovak | sk_SK |
| Slovenian | sl_SI |
| Somali | so_SO |
| Spanish | es_LA |
| Spanish (Chile) | es_CL |
| Spanish (Colombia) | es_CO |
| Spanish (Mexico) | es_MX |
| Spanish (Spain) | es_ES |
| Spanish (Venezuela) | es_VE |
| Swahili | sw_KE |
| Swedish | sv_SE |
| Syriac | sy_SY |
| Tajik | tg_TJ |
| Tamil | ta_IN |
| Tatar | tt_RU |
| Telugu | te_IN |
| Thai | th_TH |
| Traditional Chinese (Hong Kong) | zh_HK |
| Traditional Chinese (Taiwan) | zh_TW |
| Turkish | tr_TR |
| Ukrainian | uk_UA |
| Urdu | ur_PK |
| Uzbek | uz_UZ |
| Vietnamese | vi_VN |
| Welsh | cy_GB |
| Xhosa | xh_ZA |
| Yiddish | yi_DE |
| Zulu | zu_ZA |