Indo-European family
-----Indo-Iranian group
----------Indic / Indo-Aryan branch
----------Iranian branch
-----Greek group
-----Italic (Latin) group
----------Portuguese
----------Spanish
----------Occitan
----------French / Oil languages
----------Italian
----------Sardinian
----------Rheto-Roman
----------Roumanian
-----Celtic group
----------Brittonic branch
----------Gaelic branch
-----Germanic group
----------Western branch
---------------Anglo-Frisian
---------------Germano-Dutch
--------------------Low Saxon / Niederdeutsch
--------------------High German / Hochdeutsch
-------------------------Middle German
-------------------------Upper German
----------Northern / Scandinavian branch
---------------Western sub-group
---------------Eastern sub-group
-----Baltic group
-----Slavic group
----------Western branch
----------Southern branch
---------------Western sub-group
---------------Eastern sub-group
----------Eastern branch
-----Armenian group
-----Albanian group

 Basque family

 Dravidian family
-----Northern group
-----Central group
-----Southern group

 Uralic family
-----Finno-Ugric group
----------Finnic branch
----------Ugric branch
-----Samoyed group

 Caucasian family
-----Caucasian group
----------North-Western
----------North-Eastern
-----Kartvelian group

 Altaic family
-----Turkic group
-----Mongolian group
-----Manchou-Tungus group

 Japanese family

 Ainu family

 Korean family

 Sino-Tibetan / Sino-Thai family
-----Chinese group
-----Tibeto-Burman
----------Tibetan branch
----------Burman branch
-----Tai-Kadai / Daic group
-----Miao-yao group

 Austro-Asiatic family
-----Mon-Khmer group
-----Munda group

 Afro-Asiatic family
-----Chamitic group
-----Semitic group
-----Berber group
-----Cushitic group
-----Omotic group
-----Chadic group

 Nilo-Saharan family
-----Songhai group
-----Chari-Nile group
-----Maban group
-----Fur group
-----Koman group

 Nigero-Kordofanian family
-----Kordofanian languages
----------Kadugli group
----------Kordofanian group
-----Niger-Congo languages
----------Benue-Congo branch
---------------Bantoid sub-group
---------------Bantu languages
----------Eastern Adamawa group
----------Kwa group
----------Gur group
----------West-Atlantic group
----------Mande group

 Khoisan family

 Austronesian family
-----Formosan group
-----Western Malayo-Polynesian group / Indonesian
-----Central Malayo-Polynesian group
-----Eastern Malayo-Polynesian group
----------Southern Halmahera branch
----------Oceanic branch
---------------Melanesian languages
---------------Polynesian languages
---------------Micronesian languages

 Indopacific family (Papuan languages)

 Australian languages

 Creoles or Pidgin languages

 Amerindian family
-----Araucanian group
-----Quechuan group
-----Aymaran group
-----Tupi-Guarani group
-----Arawakan group
-----Chibchan group
-----Mayan group
-----Oto-manguean group
-----Uto-Aztecan group
-----Wakashan group
-----Siouan group
-----Muskogean group
-----Iroquoian group
----------Northern branch
---------------Susquehannock
---------------Wendat
----------Southern branch
---------------Cherokee
-----Algonquian group

 Na-Dene family
-----Athabaskan group

 Eskimo-Aleut family
-----Aleut group
-----Eskimo (Inuit) group
----------Inuit branch
----------Yupik branch

 Paleo-Siberian languages