Joseph Charles Doumba (2 February 1936[1] – 5 March 2017[2]) was a Cameroonian politician.
[5] Doumba and RDPC Deputy Secretary-General Gregoire Owona had a poor relationship; by 2003 they had reportedly not been on speaking terms for years, and Biya was said to primarily work with Owona, while largely ignoring Doumba.
Doumba's health was poor by that time, and he was often in France for medical treatment; he also faced discontent within the party due a perception that he was aloof from the party at the local level, and he was accused of ignoring the Central Committee.
[6] Doumba's poor health was highlighted by the visible difficulty he had in giving a speech at an RDPC extraordinary congress in July 2006.
Due to the state of his health, party affairs were largely managed by Owona[7] until Biya, in his capacity as National President of the RDPC, appointed Rene Sadi to succeed Doumba on 4 April 2007.