Regions of South Sudan
- Kai-Emongorr
- River Kaielot
- Kaiedin
- Kaich
- Rijl Kaia
- Khawr Kaia
- Khawr Kaia
- Kaia
- War Kai
- Jabal Kagweri
- Kagwa
- Kagethi
- Kagelu
- Kaforere
- Kafindibei
- Kafia Kingi
- Kaffiara
- Kadu
- Kadu
- River Kadoke
- Kading’etoni
- Kadingetom Range
- Kadi Nduvu
- Kadili
- Kadi
- Kaderu
- Kadei
- Kadegoin
- Kudda
- Khor Kadanga
- Kachurak
- Kachinga
- Kachekakinei
- Kaboshi
- Kabokor Ing’ole
- Kabbas
- Kabash
- Kabareit
- Kabaluzu
- Kabalatigo
- Kabakapala
- Jwong
- Jwol
- Jwoia
- Khor Jurwel
- River Jur
- Jur
- Jur
- Jur
- Jur
- Juot
- Juong
- Juong
- Qanāt Junqalī
- Junqal
- Ajak Bikr
- Jungyang
- Wādī Jungwia
- Jabal Junguyu
- Junguls
- Jungshol
- Jungkor
- Junea
- Gemmeira
- Jummayzah
- Gemmeiza
- Gemmeiza
- Jumbo
- Jumbana
- Jabal Juku
- Jui
- Juet
- Juboli
- Juba
- Jual
- Juai
- Juac Bor
- Jotoich
- Jot Junum
- Joteng
- Jongwa
- Jong Lual
- Jonglow
- Jokwot
- Jokwe
- Jokoki
- Khor Joknyang
- Joknyang
- Jokau
- Jokabar
- Jogiel
- Joelika
- Joe
- Khor Gia
- Jiu
- Jirbānāt
- Jabal Jiowa
- Gimal
- Jikao
- Jikaing
- Jigokwe
- Jigidi
- Jier
- Gibril
- Gibril
- Gibril
- Jabal Jeti
- Jerbar
- Jeraputa
- Jelli
- Jaziré
- Jarra
- Garayan
- Wadi Jaraiaka
- Jantoka
- Jangyang
- Janguar
- Jabal Jangi
- Jabal Jangher
- Gamus
- Jamshuai
- Jama
- Jabal Jallābah
- Jellab
- Jali
- Jalei
- Jalang
- Jakari
- Jak
- Jagey Nuer
- Jagai
- Jabur
- Jabor
- Gabir
- Bahr el Jebel
- Jaai
- Iyiri
- Jabal Iyi
- Iyedo
- Khor Iya
- Iwatoku
- Ituko
- Itigip
- Itibol
- River Echu
- Issore
- Iso Hills
- Irume
- Irum
- Jabal Iri
- Irabi
- Ipotu Mountains
- Khor Inigaba
- Jabal Inid
- Khor Ingozzi
- Ingiji
- Inger
- Indura
- Indirigwa
- Inderi
- River Immi
- Imela
- Imbar
- Imatong Mountains
- Imaje
- Imadala
- Iluko
- Iloli
- Iliu
- Ilibari
- Ilemi Triangle
- Ilangari
- Ilang
- Ila
- Ikulis
- Ikoto
- Ikatik
- Ikabendi
- Jabal Iguda
- Khor Igi
- Idong
- Khor Idon
- Idetak
- Idali
- Ichomo
- Ichena
- Ibrogang
- Ibrahim
- Ibra
- Iboni
- River Ibobo
- Ibegilik
- Ibba
- Ibalani
- Iambari
- Iamba
- Huru
- Hijairi
- Hugeirat el Khadra
- Hofrat en Nahas