| Gapapaiwa | |
| States: | Papua New Guinea |
| Region: | Milne Bay Province, Cape Vogel |
| Speakers: | 3,000 |
| Date: | 2007 |
| Ref: | e18 |
| Familycolor: | Austronesian |
| Fam2: | Malayo-Polynesian |
| Fam3: | Oceanic |
| Fam4: | Western |
| Fam5: | Papuan Tip |
| Fam6: | Kilivila – |
| Fam7: | Are–Taupota |
| Fam8: | Are |
| Iso3: | pwg |
| Glotto: | gapa1238 |
| Glottorefname: | Gapapaiwa |
Gapapaiwa, also Gapa or Paiwa, is an Austronesian language of the eastern Papua New Guinean mainland.