The Diocese of Malaybalay (Lat: Dioecesis Malaibalaiensis) is a diocese of the Latin Church of the Catholic Church in the Philippines.

The diocese was erected on April 25, 1969, as the Territorial Prelature of Malaybalay. On November 15, 1982, the prelature was elevated to a full diocese.

The diocese is a suffragan of the Archdiocese of Cagayan de Oro. On June 29, 2021, Pope Francis named Fr. Noel Pedregosa, then-Apostolic Administrator as the fifth bishop of Malaybalay replacing Jose Cabantan who was appointed Archbishop of Cagayan de Oro.

The Diocese covers the province of Bukidnon, except the municipality of Malitbog (which is under the Archdiocese of Cagayan de Oro), the municipality of Wao, Lanao del Sur, and Barangay Buda in Davao City (on the Bukidnon – Davao del Sur boundary). It covers an area of 8,294 square kilometers with a population of 1,726,520 (81.6% of which are Catholics).

Bishop		Period in Office	Coat of Arms
1.	Francisco F. Claver, S.J.†	June 18, 1969 – September 14, 1984 (15 years, 88 days)
2.	Gaudencio B. Rosales	September 14, 1984 – December 30, 1992 (8 years, 107 days)
3.	Honesto C. Pacana, S.J.†	March 24, 1994 – May 15, 2010 (16 years, 123 days)
4.	Jose A. Cabantan	May 15, 2010 – June 23, 2020 (10 years, 39 days)
5.	Noel P. Pedregosa	June 29, 2021 – present (3 years, 195 days)

• Jose R. Manguiran (December 27, 1966 – May 27, 1987, appointed Bishop of Dipolog)
• Noel P. Pedregosa (September 12, 1991 – June 29, 2021, appointed Bishop of Malaybalay)
• Elenito Galido (April 25, 1979 – March 25, 2006, appointed Bishop of Iligan)

• Catholic Church in the Philippines