Rt. Rev. Bonaventure Bosco Gubazire was born on March 3, 1974 in Kitumba Hiika of  Rushoroza Cathedral Parish. He attended St. Mary’s Boys Primary School, Rushoroza from1981-1987, then St. Paul’s Minor Seminary, Rushoroza from 1988-1994. In 1994, he entered the Postulancy of the Missionaries of Africa (White Fathers). He made perpetual vows on December 7, 2002 and was ordained a priest on August 10, 2003 at Rushoroza Cathedral Parish by Rt. Rev. Callist Rubaramira.

He holds a Bachelor of Arts in Philosophy and Religious Studies from the Philosophy Centre Jinja, PCJ (1997), a Bachelor of Arts in Theology from the Institut Catholique de Toulouse, France (2003), a Masters of Arts in Philosophy  (majoring in Ethics) from the Milltown Institute of Philosophy of Dublin, Ireland (2010). He also holds a Diploma in ICT System Support from Andiamo Educational Institutions of Baraka, Malawi (2013) and a Doctorate Degree in Philosophy (PhD) from the University of San Carlos of Cebu, Philippines (2020).

On July 15, 2026, Pope Leo XIV appointed him Bishop of Kabale Diocese.  He was ordained and installed on October 3, 2026 at Rushoroza. He is the fifth appointed Shepherd after Bishops Gervasius Nkalanga (1966-1969), Barnabas Halem’Imana (1969-1994), Robert Mary Gay (1994-2003) and Callist Rubaramira (2003-2026).