| 154828 | Kamoro | mare | | | McElhanon and Voorhoeve (1970) | tongue |
| 32226 | Kambaira | imaifindi | | | SIL () | |
| 1692 | Kamasa | tewa | | | Lloyd (1973) | |
| 74637 | Kamano | (ä)gänéfu'na | | | Scott (1978) | |
| 37926 | Kamang (Pido 2 Dialect) | nɛg'ɛʔ | | | Stokhof (1975) | |
| 38160 | Kamang (Pido 1 Dialect) | nαg'ɛ | | | Stokhof (1975) | |
| 38278 | Kamang (Letley Dialect) | nalp'u | | | Stokhof (1975) | |
| 38512 | Kamang (Langkuru Dialect) | nαg'ɛt | | | Stokhof (1975) | |
| 36989 | Kamang (Kolomane Dialect) | nαg'ɛr | | | Stokhof (1975) | |
| 35934 | Kamang | nak'ey | | | Stokhof (1975) | |
| 3249 | Kaluli | sano | | | Franklin and Voorhoeve (1973) | |
| 16691 | Kaluli | eʌn | | | Shaw (1986) | |
| 154850 | Kaluli (Bosavi Dialect) | inem | | | McElhanon and Voorhoeve (1970) | tongue |
| 195850 | Kalam | aleb | | | Pawley (2013) | |
| 261149 | Kaki Ae | anara | | | Strong (1911) | |
| 6166 | Kaki Ae | anara | | | Brown (1973) | |
| 212863 | Kaiy | a-ɾijɛ | | | Clouse (1997) | |
| 34865 | Kafoa | ninαl'ip | | | Stokhof (1975) | |
| 37574 | Kabola (Pitumbang Dialect) | nαlib'uŋ | | | Stokhof (1975) | |
| 36520 | Kabola (Hamap Dialect) | nαr'ɛbuŋ | | | Stokhof (1975) | |
| 35700 | Kabola (Aimoli Dialect) | nαl'ibuŋ | | | Stokhof (1975) | |
| 176764 | Jilim | eŋ | | | Z'graggen (1980) | tongue |
| 154861 | Iyo | mipi | | | McElhanon and Voorhoeve (1970) | tongue |
| 237689 | Iwam | kwane | | | Foley (2005) | |
| 243444 | Iwam | kwane | | | Laycock (1968) | |
| 198453 | Iteri | lɛtɛ | | | Conrad and Dye (1975) | |
| 120407 | Isebe | belea- | | | Z'graggen (1980) | tongue |
| 191079 | Isabi | -ɛhuɸamina | | | Z'graggen (1980) | tongue |
| 80419 | Ipili | eke | | | Franklin (1975) | |
| 17139 | Ipiko | a̧′ha̧ | | | Franklin (1973) | |
| 74642 | Inoke-Yate | (a)véfu('ná) | | | Scott (1978) | |
| 74643 | Inoke-Yate | (a)genefu('na) | | | Scott (1978) | |
| 219011 | Indonesian | lidah | | | Kriens & Lebold (2010) | |
| 3557 | Ikobi-Mena | kumen | | | Franklin (1973) | |
| 212859 | Iau | ae | | | Clouse (1997) | |
| 237394 | Iatmul | tɨkat | | | Foley (2005) | |
| 202085 | Iatmul (Tambanam Dialect) | tɨkŋal | | | Staalsen (1969) | |
| 202353 | Iatmul (Korogo Dialect) | tɨǥatN | | | Staalsen (1969) | |
| 202220 | Iatmul (Kanganaman Dialect) | tɨkŋal | | | Staalsen (1969) | |
| 202490 | Iatmul (Brugnowi Dialect) | tɨǥatN | | | Staalsen (1969) | |
| 55180 | Hunjara-Kaina Ke | iwiwi | tongue | | Smallhorn (2011) | |
| 55181 | Hunjara-Kaina Ke | ivivi | tongue | | Smallhorn (2011) | |
| 257618 | Humene | maˈnane | | | Dutton (1970) | tongue |
| 31984 | Huli | hɛge | | | SIL (1992) | |
| 80418 | Huli | hege | | | Franklin (1975) | |
| 257616 | Hula | mae- | | | Dutton (1970) | tongue |
| 201938 | Hiri Motu | mʌlʌ | | | SIL (1975) | |
| 243433 | Heyo | elktife | | | Laycock (1968) | |
| 163580 | Haruai (Wiyaw Dialect) | alᵊ'bʌɲ | | | Davies and Comrie (1985) | tongue |
| 6711 | Hamtai | aaiwa | | | Lloyd (1973) | |
