Koibla Djimasta (an haife shi a ranar 30 ga Janairun shekarar 1950, 2007 ) ɗan siyasan Cadi ne daga ƙabilar Sara wanda ya fito daga yankin Kudancin Chari-Baguirmi. Kasantuwar sa mai gudanarwa, Djimasta ya rike mukamai daban-daban na majalisar ministoci karkashin Shugabanni Hissène Habré da Idriss Déby, wanda ya fara da nada shi a matsayin Ministan Lafiya da Harkokin Jama'a a majalisar ministocin da Habré ya kirkira a ranar 21 ga watan Oktoba na 1982, jim kadan bayan hawarsa mulki. Bayan hawan Déby kan karagar mulki da halatta jam'iyyun siyasa masu adawa, ya zama memba na Union for Democracy and Republic, wanda aka kafa a 1992, kuma ya kasance jigo a jam'iyyar, tare da Jean Alingué Bawoyeu.   http://democratie.francophonie.org/IMG/pdf/Lettre_information_AOMF_04.pdf Alan John Day, Political Parties of the World, (2002), page 95.