François Halyday Mbouangui

François Halyday Mbouangui (born 4 October 1977) is a Congolese Catholic prelate who serves as the Bishop of the Roman Catholic Diocese of Nkayi, in the Republic of the Congo since 1 June 2026. Prior to that, he was Coadjutor Bishop of the same Catholic See from December 2025 until 1 December 2026. Before that, from 14 July 2007 until 1 December 2025, he was a priest of the same Catholic dioceese. Pope Leo XIV appointed him bishop in December 2025. His episcopal consecration took place on 15 February 2026.

Background and education He was born on 4 October 1977, in Mindouli, Diocese of Kinkala, Pool Department, in the Republic of the Congo. He studied philosophy at the Monsignor Firmin Singha National Major Seminary in Brazzaville. He then studied theology at the Pontifical Urban University in Rome, Italy. He holds a licentiate in "science of communication" and a master's degree in publishing and journalism, both from the University of Verona.

Priesthood He was ordained a priest for the Diocese of Nkayi on 14 July 2007. He served as a priest until 1 December 2025. While a priest, he served in several roles and locations, including: