| 121066 | Murupi | o- si | | | Z'graggen (1980) | belly |
| 191424 | Musak | kumʉ | | | Z'graggen (1980) | belly |
| 140369 | Musar | uːla | | | Z'graggen (1980) | belly |
| 90879 | Nabak | tip- | (its) belly | | McElhanon (1967) | (its) belly |
| 243549 | Nabi | nəpɨ | | | Laycock (1968) | |
| 197748 | Nagatiman | ařžų | | | Conrad and Dye (1975) | |
| 199051 | Nakame (Dzenzen Dialect) | qɑbɑqni | | | Retsema et al. (2009) | |
| 199694 | Nakame (Gufin Dialect) | kɑbɑ:tne | | | Retsema et al. (2009) | |
| 199558 | Nakame (Munguleng Dialect) | qɑbɑqge | | | Retsema et al. (2009) | |
| 199175 | Nakame (Popof Dialect) | qɑ·bɑ | | | Retsema et al. (2009) | |
| 198932 | Nakame (Wasin Dialect) | qɑbɑqni | | | Retsema et al. (2009) | |
| 121068 | Nake | o- | | | Z'graggen (1980) | belly |
| 243570 | Namia | li: | | | Laycock (1968) | |
| 200148 | Nek (Goambot Dialect) | mənzɨp | | | Retsema et al. (2009) | |
| 191422 | Nend | mpə | | | Z'graggen (1980) | belly |
| 246308 | Nimo | pana | | | SIL (1963) | |
| 198184 | Nimo | panʌ | | | Conrad and Dye (1975) | |
| 243544 | Ningil | nəfalou | | | Laycock (1968) | |
| 121080 | Nobonob | wo- | | | Z'graggen (1980) | belly |
| 17246 | Northeast Kiwai (Arigibi Dialect) | nɩ'ló | | | Wurm (1973) | |
| 31434 | Northeast Kiwai (Gibaio Dialect) | 'dou'pi: | | | Wurm (1973) | |
| 2941 | Northeast Kiwai (Gope Dialect) | nio | | | Wurm (1973) | |
| 957 | Northeast Kiwai (Urama Dialect) | niřo | | | Wurm (1973) | |
| 199771 | Nuk (Tamben Dialect) | mɨndu | | | Retsema et al. (2009) | |
| 200074 | Numanggang (Kawalang Dialect) | kɑbɑ: | | | Retsema et al. (2009) | |
| 199994 | Numanggang (Tumung Dialect) | kɑbɑ: | | | Retsema et al. (2009) | |
| 197398 | Odiai | ʌiɛnʌ | | | Conrad and Dye (1975) | |
| 16296 | Odoodee (Hesif Dialect) | ɔbẽnie | | | Shaw (1986) | |
| 16196 | Odoodee (Kalamo Dialect) | ɔbenie | | | Shaw (1986) | |
| 177377 | Ogea | ogo- | | | Z'graggen (1980) | belly |
| 75520 | Oirata | 'atu | | | Taber (1993) | |
| 243538 | Olo | yüfu | | | Laycock (1968) | |
| 3666 | Omati | kaburu | | | Franklin (1973) | |
| 14828 | Ömie | dë | stomach, excrement, womb, insides | | Dutton (2010) | |
| 5991 | Onabasulu | kuf | | | Shaw (1973) | |
| 16096 | Onabasulu | kubɔ | | | Shaw (1986) | |
| 243535 | One, Inebu | ponna | | | Laycock (1968) | |
| 90866 | Ono | kai- | (its) belly | | McElhanon (1967) | (its) belly |
| 4559 | Opao | ére | | | Brown (1973) | |
| 47874 | Orokaiva (Dobuduru Dialect) | hini | belly | | Smallhorn (2011) | |
| 28125 | Orokaiva (Dobuduru Dialect) | hini | | | Wilson (1969) | |
| 28170 | Orokaiva (Jegarata-Kakendetta Dialect) | hini | | | Wilson (1969) | |
| 47875 | Orokaiva (Jegarata-Kakendetta Dialect) | hini | belly | | Smallhorn (2011) | |
| 47897 | Orokaiva (Jegasa-Sarau Dialect) | ure | belly | | Smallhorn (2011) | |
| 28208 | Orokaiva (Kendata Dialect) | ure | | | Wilson (1969) | |
| 47898 | Orokaiva (Kendata Dialect) | ure | belly | | Smallhorn (2011) | |
| 47863 | Orokaiva (Sairope Dialect) | ori | belly | | Smallhorn (2011) | |
| 28348 | Orokaiva (Sairope Dialect) | ori | | | Wilson (1969) | |
| 47899 | Orokaiva (Sose Dialect) | ure | womb, wall | | Smallhorn (2011) | |
| 47876 | Orokaiva (Sose Dialect) | tini | belly | | Smallhorn (2011) | |
