| Ellinika | ell-003 |
| Lettonía | |
| Afrikaans | afr-000 | Letland |
| Classical Arabic—ASJP | arb-001 | Lātfiyā |
| luenga aragonesa | arg-000 | Letonia |
| asturianu | ast-000 | Letonia |
| biełaruskaja łacinka | bel-002 | Łatvija |
| bălgarski ezik | bul-001 | Latwija |
| català | cat-000 | Letònia |
| čeština | ces-000 | Lotyšsko |
| Çăvaşla | chv-001 | Latwi |
| Hànyǔ | cmn-003 | Lātuowéiyà |
| Kernowek | cor-000 | Latvi |
| lingua corsa | cos-000 | Lettonia |
| Cymraeg | cym-000 | Latfia |
| dansk | dan-000 | Letland |
| Deutsch | deu-000 | Lettland |
| eesti | ekk-000 | Läti |
| English | eng-000 | Latvia |
| Esperanto | epo-000 | Latvio |
| euskara | eus-000 | Letonia |
| suomi | fin-000 | Latvia |
| français | fra-000 | Lettonie |
| Frysk | fry-000 | Letlân |
| Gaeilge | gle-000 | An Laitvia |
| galego | glg-000 | Letonia |
| kreyòl ayisyen | hat-000 | Letoni |
| ISO 259-3 | heb-001 | Latbia |
| hrvatski | hrv-000 | Letonija |
| magyar | hun-000 | Lettország |
| hyw-001 | Latwia | |
| Ido | ido-000 | Latvia |
| bahasa Indonesia | ind-000 | Latvia |
| íslenska | isl-000 | Lettland |
| italiano | ita-000 | Lettonia |
| Nihongo | jpn-001 | Ratobia |
| Nihongo | jpn-001 | Ratovia |
| Kartuli | kat-001 | lat'via |
| Hangungmal | kor-001 | Rateubia |
| latine | lat-000 | Lettonia |
| lietuvių | lit-000 | Latvija |
| Lëtzebuergesch | ltz-000 | Lettland |
| latviešu | lvs-000 | Latvija |
| Bân-lâm-gú | nan-005 | Latvia |
| Nederlands | nld-000 | Letland |
| bokmål | nob-000 | Latvia |
| polski | pol-000 | Łotwa |
| português | por-000 | Letónia |
| lingua rumantscha | roh-000 | Lettonia |
| română | ron-000 | Letonia |
| limba armãneascã | rup-000 | Letonia |
| russkij | rus-001 | Látviâ |
| slovenčina | slk-000 | Lotyšsko |
| slovenščina | slv-000 | Latvija |
| davvisámegiella | sme-000 | Látvia |
| español | spa-000 | Letonia |
| shqip | sqi-000 | Letonia |
| sardu | srd-000 | Latvia |
| српски | srp-000 | Летонија |
| srpski | srp-001 | Letonija |
| svenska | swe-000 | Lettland |
| tatar tele | tat-000 | Latvia |
| Tagalog | tgl-000 | Latvia |
| phasa thai | tha-001 | Laetwia |
| Türkçe | tur-000 | Letonya |
| Latynytsia | ukr-001 | Latwija |
| tiếng Việt | vie-000 | Latvia |
| yidish | ydd-001 | Letland |
| Bahasa Malaysia | zsm-000 | Latvia |