| 1000 Native Speakers or Fewer: | |||
| Name | ISO | Family | Page |
| Abenaki [Western] | ABE | Algonquian | 1 |
| Ahom | AHO | Kra-Dai | 7 |
| Ahtna [Central] | AHT | Na-Dené, Athabaskan | 7 |
| Ainu | AIN | Isolate | 8 |
| Alabama (Alibamu) | AKZ | Muskogean | 10 |
| Aleut [Atkan] | ALE | Eskimo-Aleut | 12 |
| Alutiiq [Kodiak] | EMS | Eskimo-Aleut | 14 |
| Anejom̃ (Aneityum) | ATY | Austronesian, Malayo-Polynesian | 15 |
| Apache [Jicarilla] | APJ | Na-Dené, Athabaskan | 17 |
| Arapaho | ARP | Algonquian | 21 |
| Assiniboine (Nakoda) | ASB | Siouan | 25 |
| Atsugewi | ATW | Hokan | 28 |
| Beothuk | BUE | Algonquian | 41 |
| Bulgar | XBO | Turkic | 47 |
| Carrier (Dakelh) | CRX | Na-Dené, Athabaskan | 52 |
| Cayuga | CAY | Iroquoian | 53 |
| Cherokee [Eastern] | CHR | Iroquoian | 60 |
| Chickasaw | CIC | Muskogean | 61 |
| Chilcotin | CLC | Na-Dené, Athabaskan | 62 |
| Chinook Jargon (Wawa) | CHN | Indo-European/Wakashan/Chinookan hybrid | 63 |
| Chiwere (Iowa-Otoe-Missouria) | IOW | Siouan | 64 |
| Choyo (Queyu) | QVY | Sino-Tibetan, Qiangic | 65 |
| Chukchansi | YOK | Yokutsan | 65 |
| Coeur d’Alene | CRD | Salishan | 69 |
| Comanche [Eastern] | COM | Uto-Aztecan | 70 |
| Coptic* | COP | Afro-Asiatic, Egyptian | 71 |
| Cornish | COR | Indo-European, Celtic | 71 |
| Cuman (Polovetsian) | QWM | Turkic | 76 |
| Curonian | XCU | Indo-European, Baltic | 76 |
| Dakota (Dakhota) | DAK | Siouan | 78 |
| Dalmatian | DLM | Indo-European, Italic | 79 |
| Deg Xinag | ING | Na-Dené, Athabaskan | 81 |
| Denaakk’e (Koyukon Athabaskan)[Central] | KOY | Na-Dené, Athabaskan | 81 |
| Dena’ina (Tanaina) [Outer Inlet] | TFN | Na-Dené, Athabaskan | 82 |
| Ditidaht (Nitinaht or Southern Nootka) | DTD | Wakashan | 84 |
| Dukhan | ??? | Turkic | 86 |
| Dutch [Old] | ODT | Indo-European, Germanic | 88 |
| Enets (Entsy) [Forest] | ENF and ENH | Uralic, Samoyedic | 92 |
| English [Old] (Anglo-Saxon)* | ANG | Indo-European, Germanic | 92 |
| Erromintxela | EMX | Indo-European/Isolate hybrid | 93 |
| Etruscan | ETT | Tyrrhenian (hypothetical) | 96 |
| Eyak | EYA | Na-Dené, Athabaskan | 98 |
| Frankish (Old Franconian) | FRK | Indo-European, Germanic | 103 |
| Frisian [West Schiermonnikoog] | FRY | Indo-European, Germanic | 104 |
| Fuyu Kyrgyz (Manchurian Kirghiz) | ??? | Turkic | 107 |
| Gamilaraay (Kamilaroi) | KLD | Pama-Nyungan | 112 |
| Gaulish | XTG | Indo-European, Celtic | 113 |
| Georgian [Old] | KAT | Kartvelian | 115 |
| German [Old High] | GOH | Indo-European, Germanic | 116 |
| German [Early New High] | GER | ” | 117 |
| Gitxsan (Gitksan or Gitsenimx) | GIT | Tsimshianic | 119 |
| Gothic | GOT | Indo-European, Germanic | 120 |
| Gros Ventre (Atsina) | ATS | Algonquian | 123 |
| Gullah (Sea Islands Creole) | GUL | Creole | 126 |
| Gwich’in [Fort McPherson] | GWI | Na-Dené, Athabaskan | 129 |
| Haida | HAI | Isolate | 129 |
| Heiltsuk-Oowekyala [Heiltsuk] | HEI | Wakashan | 133 |
| Hidatsa | HID | Siouan | 134 |
| Holikachuk | HOI | Na-Dené, Athabaskan | 136 |
| Huron (Wyandot) [17th-18th centuries] | WYA | Iroquoian | 140 |
| Ingrian (Izhorian) | IZH | Uralic, Finnic | 144 |
| Istriot (Rovignese) | IST | Indo-European, Italic | 148 |
| Itelmen | ITL | Chukotko-Kamchatkan | 149 |
| Japanese [Heian] | OJP | Japonic | 150 |
| Jaqaru | JQR | Aymaran | 151 |
| Jurchen | DTA | Tungusic | 155 |
| Kanza (Kaw) | KSK | Siouan | 162 |
| Karuk | KYH | Isolate | 167 |
| Kaska | KKZ | Na-Dené, Athabaskan | 168 |
| Ket | KET | Yeniseian | 171 |
| Kiliwa | KLB | Yuman | 178 |
| Kiowa | KIO | Tanoan | 179 |
| Koasati (Coushatta) | CKU | Muskogean | 180 |
| Kumandin | ??? | Turkic | 187 |
| Kutenai (Ktunaxa) | KUT | Isolate | 191 |
| Lenape (Delaware) | DEL | Algonquian | 202 |
| Lingarak (Neverver) | LGK | Austronesian, Malayo-Polynesian | 207 |
| Livonian | LIV | Uralic, Finnic | 209 |
| Lower Tanana (Minto) | TAA | Na-Dené, Athabaskan | 213 |
| Macedonian {Hellenic} | XMK | Indo-European, Slavic | 221 |
| Malecite-Passamaquoddy | PQM | Algonquian | 227 |
| Manchu* | MNC | Tungusic | 228 |
| Mangarevan | MRV | Austronesian, Malayo-Polynesian | 229 |
| Manx | GLV | Indo-European, Celtic | 231 |
| Māori [Moriori] | MRI | Malayo-Polynesian | 233 |
| Matlatzinca | MAT | Oto-Manguean | 235 |
| Mavea | MLV | Austronesian, Malayo-Polynesian | 236 |
| Maxakalí | MBL | Macro-Gê | 236 |
| Menominee | MEZ | Algonquian | 240 |
| Meriam Mir (Eastern Torres Strait) | ULK | Trans-Fly | 241 |
| Miami-Illinois (Myaamia) | MIA | Algonquian | 242 |
| Michif | CRG | Indo-European/Algonquian hybrid | 243 |
| Mochica (Chimú) | OMC | Chimuan (hypothetical) | 250 |
| Mokilese | MKJ | Austronesian, Malayo-Polynesian | 251 |
| Mozarabic (Andalusi Romance) | MXI | Indo-European, Italic | 256 |
| Navava (Avava or Katbol) | TMB | Austronesian, Malayo-Polynesian | 264 |
| Nez Perce | NEZ | Plateau Penutian | 268 |
| Nganasan | NIO | Uralic, Samoyedic | 269 |
| Nivkh (Gilyak) | NIV | Isolate | 272 |
| Norman [Guernésiais/Dgèrnésiais] | NRF | Indo-European, Romance | 275 |
| Norman [Sercquiais] (Sarkese) | NRF | ” | 276 |
| Nukuoro | NKR | Austronesian, Malayo-Polynesian | 277 |
| Nuuchahnulth (Nootka) [Hesquiaht, Muwač’atḥ] | NUK | Wakashan | 278 |
| Nuuchahnulth (Nootka) [Ahousaht, ʕaaḥusʔatḥ] | NUK | ” | 278 |
| Nuuchahnulth (Nootka) [Tseshaht, C’išaaʔatḥ] | NUK | ” | 279 |
| Oneida | ONE | Iroquoian | 284 |
| Onondaga | ONO | Iroquoian | 284 |
| Oroch | OAC | Tungusic | 285 |
| Ös (Chulym) | CLW | Turkic | 286 |
| Ös (Chulym) [Küärik] | CLW | ” | 287 |
| Osage | OSA | Siouan | 287 |
| Pahlavi (Middle Persian) | PAH | Indo-European, Indo-Iranic, Iranic | 290 |
| Palmyrene | ??? | Afroasiatic, Semitic | 292 |
| Pawnee [South Band] | PAW | Caddoan | 294 |
| Pecheneg | XPC | Turkic | 295 |
| Penrhyn (Tongarevan) | PNH | Austronesian, Malayo-Polynesian | 296 |
| Picard [Medieval] | PCD | Indo-European, Romance | 297 |
| Pitcairn-Norfolk | PIH | Creole | 300 |
| Polabian | POX | Indo-European, Slavic | 302 |
| Pomeranian [Slovincian] | CSB | ” | 303 |
| Potawatomi | POT | Algonquian | 304 |
| Proto-Germanic | ??? | Indo-European, Germanic | 305 |
| Proto-Slavic | ??? | Indo-European, Slavic | 305 |
| Pukapukan | PKP | Austronesian, Malayo-Polynesian | 306 |
| Puluwat | PUW | Austronesian, Malayo-Polynesian | 306 |
| Quechan (Yuma) | YUM | Yuman | 311 |
| Quileute (Quillayute) | QUI | Chimkakuan | 315 |
| Romani [Kale Welsh] | RMW | Indo-European, Indic | 322 |
| Russian [Ninilchik] | ??? | Indo-European, Slavic | 327 |
| Sabaean (Sabaic or Himyarite) | XSA | Afroasiatic, Semitic | 330 |
| Sakizaya | SZY | Austronesian, Formosan | 331 |
| Salish, Coastal [Island Halkomelem] | HUR | Salishan | 331 |
| Salish, Coastal [Klallam] | CLM | ” | 332 |
| Salish, Coastal [Puget Sound] (Lushootseed) | LUT | ” | 332 |
| Salish, Coastal [Sechelt] (Shashishalhem) | SEC | ” | 333 |
| Salish, Coastal [Squamish] | SQU | ” | 333 |
| Salish, Interior [Kalispel–Spokane–Flathead] | FLA/ SPO | ” | 334 |
| Salish, Interior [Shuswap] | SHS | ” | 334 |
| Sámi [Inari] | SMN | Finno-Ugric | 335 |
| Sámi [Kildin] | SJD | ” | 336 |
| Sámi [Skolt] | SMS | ” | 337 |
| Sámi [Southern] | SMA | ” | 337 |
| Samlandish (Old Baltic Prussian) | PRG | Indo-European, Baltic | 338 |
| Sanskrit* | SAN | Indo-European, Indo-Iranic, Indic | 340 |
| Satawalese | STW | Austronesian, Malayo-Polynesian | 344 |
| Sekani [Fraser Lake] | SEK | Na-Dené, Athabaskan | 347 |
| Sekani [McLeod Lake and Tsek’ene] | SEK | ” | 347 |
| Seri | SEI | Isolate | 349 |
| Shawnee | SJW | Algonquian | 351 |
| Shoshoni (Shoshone) [Eastern] | SHH | Uto-Aztecan | 355 |
| Sikaiana | SKY | Austronesian, Malayo-Polynesian | 356 |
| Siona (Bai Coca) | SNN | Tucanoan | 358 |
| Slavey [South] | XSL | Na-Dené, Athabaskan | 359 |
| Slavonic [Old Church]* | CHU | Indo-European, Slavic | 359 |
| Slavonic [New Church]* | CHU | ” | 360 |
| Sumo (Mayangna) [Southern, Ulwa] | ULW | Misumalpan | 368 |
| Syriac Aramaic* | SYC | Afroasiatic, Semitic | 370 |
| Tanacross | TCB | Na-Dené, Athabaskan | 375 |
| Tangut | TXG | Sino-Tibetan, Qiangic | 376 |
| Timbisha [Panamint] | PAR | Uto-Aztecan | 382 |
| Tlingit | TLI | Na-Dené | 384 |
| Tobian | TOX | Austronesian, Malayo-Polynesian | 384 |
| Tocharian B (West Tocharian or Kuchean) | TXB | Indo European, Tocharian | 385 |
| Tofalar (Tofa or Karagas) | KIM | Turkic | 385 |
| Tolowa (Siletz Dee-ni) | TOL | Na-Dené, Athabaskan | 387 |
| Tsimshian [Coast] | TSI | Tsimshianic | 391 |
| Tunica | TUN | Isolate | 394 |
| Tuscarora | TUS | Iroquoian | 398 |
| Tutchone [Northern] | TTM | Na-Dené, Athabaskan | 398 |
| Tutchone [Southern, Aishihik] | TCE | ” | 399 |
| Udi [Old] (Gargarian or Caucasian Albanian) | XAG | Northeast Caucasian | 401 |
| Unami | UNM | Algonquian | 404 |
| Upper Chinook [Clackamas] | WAC | Chinookan | 404 |
| Upper Kuskokwim | KUU | Na-Dené, Athabaskan | 405 |
| Votic (Votian or Vote) | VOT | Uralic, Finnic | 409 |
| Wintu | WNW | Wintuan | 415 |
| Wymysorys (Wilamowicean or Vilamovian) | WYM | Indo-European, Germanic | 417 |
| Xincan [Jutiapa] | XIN | Isolate | 418 |
| Yiddish (Judaeo-German) [13th Century] | YID | Indo-European, Germanic | 423 |
| Yukaghir [Tundra] | YKG | Yukaghir (it’s a family) | 425 |
| Yup’ik [Chevak Cup’ik] | ESU | Eskimo-Aleut | 426 |
| Zapotec, Western Tlacolula Valley [Teotitlán del Valle] | ZAB | Oto-Manguean | 427 |