Masarautar Kaziba (Faransa: Chefferie de Kaziba) wata masarauta ce da ke yankin Walungu na lardin Kivu ta Kudu a yankin gabashin Jamhuriyar Dimokaradiyyar Kongo (DRC). Babban birninta shine Lwanguku, mai tazarar kilomita 55 kudu da birnin Bukavu. Masarautar tana iyaka daga gabas da Kogin Luvubu da Masarautar Bafuliiru, daga kudu zuwa Kogin Lulimbohwe, Kogin Kashandja, da Kogin Magaja, wanda ya raba shi da masarautar Luhwindja. A arewa, yana da iyaka da kogin Mugaba da kogin Luzinzi, wanda ke da iyaka da Masarautar Ngweshe, daga yamma kuma yana iyaka da tsaunin Itombwe da tafkin Lungwa, wanda ya raba shi da masarautar Luindi da masarautar Burhinyi. Tana da fadin kasa kilomita 195, tana da yawan jama'a 44,235, mafi yawansu 'yan Shi'a ne Masarautar Kaziba gida ce ga ’yan Shi’a (jam’i: Bamushi ko Bashi), kabilar da ta fi yawa a yankin. Basaraken gargajiya, wanda aka fi sani da Mwami, yana taka muhimmiyar rawa wajen kiyaye doka da oda da kuma kiyaye al'adun yan Shi'a.