The Sere languages (also called the Ndogoic or Sere–Ndogo languages) are a proposed family of Ubangian languages spoken in South Sudan and the Democratic Republic of the Congo. Several are endangered or extinct. The most populous Sere language is Ndogo of South Sudan, with about 30,000 speakers.

Traditionally classified as part of the Sere languages, Feroge–Mangayat and Indri–Togoyo could be separate groups that may not belong within Sere.

Languages

Per Ethnologue 26, the structure of the family is as follows:

SereFeroge–Mangaya Feroge Mangayat Indri–Togoyo Indri Togoyo † Sere–Bviri Bai–Viri Bai Belanda Viri Ndogo–Sere Ndogo Sere Tagbu
Feroge–MangayaFeroge Mangayat
Feroge
Mangayat
Indri–TogoyoIndri Togoyo †
Indri
Togoyo †
Sere–BviriBai–Viri Bai Belanda Viri Ndogo–Sere Ndogo Sere Tagbu
Bai–ViriBai Belanda Viri
Bai
Belanda Viri
Ndogo–SereNdogo Sere Tagbu
Ndogo
Sere
Tagbu

Per Glottolog v4.8, the structure of the family is as follows:

SereicFeroge–Mangaya Feroge Mangayat Sere–Indri Indri–Togoyo Indri Togoyo † Sere–Bviri Bai–Viri Bai Belanda Viri Ndogo–Sere Ndogo Tagbu–Sere Sere Tagbu
Feroge–MangayaFeroge Mangayat
Feroge
Mangayat
Sere–IndriIndri–Togoyo Indri Togoyo † Sere–Bviri Bai–Viri Bai Belanda Viri Ndogo–Sere Ndogo Tagbu–Sere Sere Tagbu
Indri–TogoyoIndri Togoyo †
Indri
Togoyo †
Sere–BviriBai–Viri Bai Belanda Viri Ndogo–Sere Ndogo Tagbu–Sere Sere Tagbu
Bai–ViriBai Belanda Viri
Bai
Belanda Viri
Ndogo–SereNdogo Tagbu–Sere Sere Tagbu
Ndogo
Tagbu–SereSere Tagbu
Sere
Tagbu

Although the Sere–Bviri languages are clearly related to each other, it is not clear if they are related to Feroge–Mangayat and Indri–Togoyo. The recently extinct Indri–Togoyo languages have pronouns that look Niger–Congo, and are not similar to those of the other languages.