| Hakö | |
| States: | Papua New Guinea |
| Region: | Buka Island |
| Speakers: | 12,000 |
| Date: | 2015 |
| Ref: | e25 |
| Familycolor: | Austronesian |
| Fam3: | Oceanic |
| Fam4: | Western |
| Fam5: | Meso-Melanesian |
| Fam6: | Northwest Solomonic |
| Fam7: | Nehan–Bougainville |
| Fam8: | Buka |
| Fam9: | Halia–Hakö |
| Iso3: | hao |
| Glotto: | hako1237 |
| Glottorefname: | Hako |
Hakö is an Austronesian language of Buka Island, Autonomous Region of Bougainville, Papua New Guinea.