| name | Ethnologue status | language family | office | IETF | alphabet | ISO 6391 | ISO 6392 | ISO 6393 | speakers (people) | Manuscript | micronation | publisher | former country | is a dialect |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Jeju language | 8a Moribund | Koreanic languages | Hangul | jje | 10,000 | Yes | ||||||||
| Korean language | 1 National | Altaic languages | Hangul | ko | kor | Variously:$#$kor –Modern Korean$#$okm –Middle Korean [Middle_Korean]$#$oko –Old Korean [Old_Korean] | 77,233,296 | Memoirs of Lady Hyegyeong | Yes |