| English | eng-000 |
| Apayao | |
| ISO 3166-2 | art-416 | PH-APA |
| Bikol | bcl-000 | Apayao |
| binisayang Sinugboanon | ceb-000 | Apayao |
| Iloko | ilo-000 | Apayao |
| italiano | ita-000 | Apayao |
| 日本語 | jpn-000 | アパヤオ州 |
| Nederlands | nld-000 | Apayao |
| bokmål | nob-000 | Apayao |
| Amanung Sisuan | pam-000 | Apayao |
| svenska | swe-000 | Apayao |
| Tagalog | tgl-000 | Apayao |
| Winaray | war-000 | Apayao |