Orang Mamak
Orang Seletar
Orang Tanjong of Ulu Langat
Oraon
Oraon Sadri
Ordos
Ordubad
Oredezh
|Oree-Khwe
Oregon Athapaskan
Oren
Orichen
Oriental Hebrew
Orierh
Original Costa Rican Sign Language
Oring
Orisi
Oriya
Oriya-Gauda-Kamrupa
Orizaba Nahuatl
Orkon
Orkon-Port Vato-Dakaka
Orlo
Orlu
Orma
Orma (Kenya)
Ormu
Ormuri
Ormuri-Parachi
Oro
Oroch
Oroha
Orok
Orokaiva
Orokaivic
Orok-Nanai
Oroko
Orokolo
Orom
Oromoid
Oropom
Oroqen
Oroshor
Orotinya
Orowe
Oro Win
Orra
Orum
Oruma
Orungu
Glottolog Languoid Names