| العربية | arb-000 |
| الكيلتي | |
| Afrikaans | afr-000 | Kelties |
| ISO 639 | art-005 | cel |
| беларуская | bel-000 | кельцкая мова |
| Deutsch | deu-000 | Keltisch |
| English | eng-000 | Celtic |
| English | eng-000 | celt |
| English | eng-000 | celtic |
| Esperanto | epo-000 | kelta |
| français | fra-000 | celtique |
| Gàidhlig | gla-000 | Ceilteach |
| italiano | ita-000 | celtico |
| 日本語 | jpn-000 | ケルト人 |
| lietuvių | lit-000 | keltas |
| bokmål | nob-000 | keltiske |
| polski | pol-000 | celtycki |
| português | por-000 | Celta |
| русский | rus-000 | кельтский |
| slovenščina | slv-000 | keltski |
| español | spa-000 | céltico |
| Türkçe | tur-000 | Keltçe |