They are a total of 64 South Sudanese tribes

Acholi

Adio (Makaraka)

Aja

Anyuak (Anyuaa)

Atuot (Reel)

Avukaya

Azande

Bai

Baka

Balanda-Boor

Balanda-Bviri

Banda

Bari

Binga

Bongo

Didinga

Dinka (Jieng)

Dongotona

Feroghe

Gollo

Ifoto

Imatong

Indri

Jiye

Jur (Beli