| Opao | |
| States: | Papua New Guinea |
| Region: | Gulf Province Orokolo and Keuru area |
| Date: | 2005 |
| Ref: | e25 |
| Familycolor: | Papuan |
| Fam1: | Trans–New Guinea |
| Fam2: | Eleman |
| Fam3: | nuclear Eleman |
| Fam4: | Western |
| Iso3: | opo |
| Glotto: | opao1240 |
| Glottorefname: | Opao |
Opao is a Trans–New Guinea language of Papua New Guinea.