| 42 | Paakantyi | Hercus (1982) | Free |
| 257 | Orokolo | Brown (1972) | Free |
| 313 | Old Hittite | Hoffner Jr and Melcher (2008) | Free |
| 67 | Old Church Slavonic | Huntley (1993) | Free |
| 137 | Oksapmin | Loughnane (2009) | Free |
| 202 | Oksapmin: clean | Loughnane (2009) | Free |
| 88 | Occitan | Wheeler (1988b) | |
| 484 | Ocaina | Rosselli (2000) | |
| 57 | Nyulnyul | McGregor (2011) | Free |
| 108 | Nyawaygi | Dixon (1983) | Free |
| 688 | Numanggang | Hynum (2010) | |
| 509 | Nukak Makú | Bolaños and Epps (2009) | |
| 444 | Nothern Sotho | Lourwrens el al. (1995) | Free |
| 410 | North Marquesan | Cablitz (2006) | Free |
| 299 | North Levantine Arabic (Damascene Dialect) | Cowell (1964) | Free |
| 350 | Northern Pumi (Northwest Yunnan Dialect) | Ding (2014) | Free |
| 467 | Northern Embera | Mortensen (1999) | |
| 503 | Northern Embera | Pardo and Aguirre (1993) | |
| 629 | Noone | Hyman (1981) | Free |
| 454 | Noon | Soukka (2000) | Free |
| 622 | Nizaa | Kjelsvik (2002) | Free |
| 291 | Nigerian Pidgin | Faraclas (1996) | |
| 376 | Nhanda | Blevins (2001) | Free |
| 10 | Ngkolmpu | Carroll (2013) | Free |
| 17 | Ngiyambaa | Donaldson (1980) | |
| 654 | ngiti_ICR_WB | Kutsch Lojenga, Constance. (1994) | |
| 665 | ngiti_ICR_TCC | Lojenga, Constance Kutsch (1994) | |
| 651 | Ngiti-ICR-LB | Kutsch Lojenga (1994) | |
| 699 | Nggarna | Carroll, M.J. (2017) | |
| 583 | Ngbandi | Toronzoni (1989) | Free |
| 347 | Ngarinman (Bilinara (Pilinara) Dialect) | Meakins and Nordlinger (2014) | Free |
| 103 | Ngankikurungkurr | Hoddinott and Kofod (1988) | Free |
| 196 | Ngandi | Heath (1978) | |
| 14 | Ngalakan | Merlan (1983) | |
| 351 | Neverver | Barbour (2012) | Free |
| 685 | Neve'ei | Musgrave (2007) | |
| 3 | Nen | Evans (2013) | Free |
| 65 | Neme | Evans (2012) | Free |
| 295 | Ndyuka | Huttar and Huttar (1994) | |
| 557 | Ndut | Morgan (1996) | Free |
| 356 | Ndom | Boelaars (1950) | Free |
| 632 | Ndoe | Byström (1954) | Free |
| 118 | Ndjébbana | McKay (2000) | |
| 577 | Nawuri | Sherwood (1982) | Free |
| 616 | Nateni | Neukom (1995) | Free |
| 647 | Namo (Tais Dialect) | Evans et al (2017) | |
| 250 | Namia | Feldpausch and Feldpausch (1992) | |
| 5 | Nambu | Evans (2013) | Free |
| 645 | Nama | Evans et al (2017) | |
| 544 | Nalu | Wilson (2007) | Free |
