Regions of South Sudan
- Umm Bakika
- Bir Umm Andal
- Umbolo
- Umberi
- Umbelti
- Umbeli
- Umbasi
- Umbabatu
- Khor Umako
- River Uma
- Ulang
- Ulambi
- Ulali
- Ulako
- Okwaa
- Uku
- Ukka
- River Ukathwa
- Ukadi
- Jabal Ujuet
- Ujak
- Khor Ugurro
- Ugar
- Ueli
- Udu Baras
- Uburi
- Uburi
- Ubori
- Ubogi
- Ubeir
- Uaiya
- Uad
- Twut
- Twong
- Twoich Pair
- Twoich
- Khor Twoda
- Twilong
- Twango
- Twabor
- Khor Tuyungui
- Tuyo Quffa
- Khor Tuse
- Khor Turunga
- Turukwana
- Pulturuk
- Turuk
- Tur Machur
- Tereiba
- Turakon
- Khor Tuni
- Tuni
- Tungyun
- Tungya
- Jabal Tungu
- Tungrub
- Tungia
- Tundi
- Khor Tombak
- Bir Tombak
- Jabal Tumrogo
- Tumma
- Tumbur
- Jabal Tumbeli
- Tumbal
- Tule Waterhole
- Khor Tul
- Jabal Tul
- Tukudungwen
- Tukara
- River Tuju
- Tugi
- Tugga
- Tuga
- Tubug
- Jabel Tubé
- Khor Tuba
- Tuai Bur
- Towot
- Towat
- Totali
- Tot
- Tor Rial
- Torpot
- Khor Torluar
- Torkej
- Torit
- Toriak
- River Tori
- Torgath
- Torbar
- Toragain
- Toraba
- Taro
- Tor
- Tor
- Topojo
- River Tonj
- Tonj
- Tong Tong
- Tong Thiang
- Khor Tongchidderongtong
- Tongadut
- Tonga
- Tong
- Tondiak
- Tombe
- Jabal Toma
- Tolwa
- Tolubi
- Tolla
- Toladul
- Tol
- Tokwaich
- Tokur
- Tok Rial
- Tokot
- Jabel Tokolo
- Toko
- Tokiman
- Toinya
- Toin Sek
- Toingwek
- Toing
- Toi
- Khor Togaba
- Toboya
- Tobaipapwa
- Tiwai
- Tiura
- Khor Tirru
- Tirro
- Tiriou
- Wādī Tiri
- Tirangole
- Tir
- Tior
- Tingya
- Jabal Tingwalangwa
- Lake Tingil
- River Tinga Tinga
- Tingar
- Tinechor
- Jabal Tindalo
- Tindalo
- Jabal Tambala
- Timan
- Tiltil
- Khor Tili
- Tiki Tiki
- Tikasu
- Tijor
- Khor Tiggi
- River Tigaro
- Tiep
- Tidwel
- Tidwach
- Tidfok
- Tidbil
- Tidakul
- Tid
- Tibna
- Tibari
- Tiarki
- Tiang Rial
- Tiang Diar
- Tiam
- Tia
- Thuro Nyiyar
- Thuro Adawdo
- Thurnum
- Thur
- Khor Thul
- Thol
- Thukchak
- Thukak
- Thorial
- Thor
- Thonbil
- Thon
- Thogyen
- Jabal Thīrān
- Thīrān
- Thir
- Khor Thingaita
- Thimtijejero
- Thiep Shawor
- Khor Thiek
- Thiang
- Thiam
- Thepkeni
- Thaworo
- Thar Wang
- Thar Nhom
- Thar Jath
- Thar Cheng
- Thantok
- Thanilak
- Thangoro
- Thangork