| Arhö | |
| Ethnicity: | 350 (2000?) |
| Speakers: | 10 |
| Date: | 2000 |
| Ref: | e18 |
| Familycolor: | Austronesian |
| Fam5: | New Caledonian – Loyalties |
| Fam9: | Wailic |
| Iso3: | aok |
| Glotto: | arho1237 |
| Glottorefname: | Arho |
| Map: | Lang Status 20-CR.svg |
Arhö is a moribund Oceanic language of New Caledonia. In 2000, there were only 10 speakers of the language.