The Union for Democracy and Republic (Union pour la Démocratie et la République or UDR) is a Chadian political party founded in 1992. In March the party elected as its president Jean Alingué Bawoyeu, who had just left the position of Prime Minister. In the parliamentary election of 1997 the party took 4 seats and initially supported the president Idriss Déby. Before the parliamentary elections, between 1995 and 1997, the Prime Minister was Koibla Djimasta, himself of the UDR. During the previous presidential elections held in 1996 the party's candidate, Alingué, gained most of his votes in his native Tandjilé Prefecture, where he obtained the 39.69% of the popular vote, but also came second in the capital N'Djamena, where he took 16,52%.

L'Union pour la démocratie et la République, ou UDR, est une formation politique algérienne, créée officiellement à Béjaïa à l’issue d'une réunion le lundi 28 juillet 2003 des membres fondateurs.