Herbert Gontran Djono Ahaba (born 7 February 1974) is a Central African politician from Vakaga Prefecture who is currently serving as a minister of transport and civil aviation.

Djono was born on 7 February 1974 in Birao. His father, Djouma Abdassid, was a Water and Forestry Service officer. He finished his elementary education in 1983 and continued his studies at Collège d’Enseignement Général in Birao, graduating in 1990. One year later, he enrolled at Lycée de Gobongo and graduated in 1996. Afterward, he continued his higher education at the University of Bangui and finished in 2000. He then took Financial Management Administration postgraduate education at Ecole Nationale d’Administration et Magistrature in Yaounde from 2000 to 2003.^[1][2]

He began his career in civil service as a tax inspector in 2004. Later, he served in various positions in the Ministry of Finance and Budget. He was elected as a member of National Assembly representing Birao 2 District in 2011. In the same year, Touadera appointed Abaha as minister of housing and accommodation from April to May 2011.^[3][4][2] On 6 January 2012, he was arrested together with Jean-Jacques Demafouth, Mahamat Abrass, and Abdel Kader Kalil with the accusation of conspiring against national security and later was released on 11 April.^[5]

Tiangaye appointed Djono as minister of Geology, Mining Research, and Hydraulics in February 2013. Then, he was appointed minister of state for mines, petroleum, energy, and hydraulics on 31 March 2013. He held this position until January 2014.^[1] During his tenure as minister of mines, he attempted to lift the CAR's suspension from the Kimberley Process and signed decrees of gold & diamond mining concessions unbeknownst to the prime minister and directors of the mining administration. The latter was done to avoid scrutiny.^[6][7]

Under the Nzapayeké cabinet, he became the minister of State in charge of public works, town planning, housing, and public buildings until August 2014. Afterward, he moved to France.^[8] In September 2017, Sarandji placed Djono as minister of energy development and hydraulic resources until June 2021. When he served in this ministerial position, he rehabilitated 15 pumps in Bangui to solve the water crisis issue, in which the government was responsible for two pump rehabilitations. At the same time, the World Bank rehabilated the rest under the Passel Project.^[9] Meanwhile, he also got involved in DDR operation.^[10] From June 2021 to the present, he is the minister of Transport and Civil Aviation. As a minister of transport and civil aviation, he created the administration for the transitional management for Société Centrafricaine des Transports Fluviaux (SOCATRAF) to assess the company's current condition and evaluate the SOCATRAF asset.^[11]

In 2023, Djono Ahaba was awarded as the best Central African minister by a Cameroon organization. However, the award received criticism and laughing stock due to his lack of achievement as a transport minister.^[12]

Djono is a nephew of Michel Djotodia and belongs to Gula.^[14][18] He is married and has six children.^[1]