The Roman Catholic Diocese of Huancavelica (Latin: Huancavelicensis) is a diocese located in the city of Huancavélica in the ecclesiastical province of Ayacucho in Peru.

On 18 December 1944 Pope Pius XII established as Diocese of Huancavelica from the Diocese of Ayacucho.

• Alberto Maria Dettmann y Aragón, O.P. (6 July 1945 – 28 June 1948), appointed Bishop of Puno
• Carlos Maria Jurgens Byrne, C.Ss.R. (13 January 1949 – 7 February 1954), appointed Bishop of Peru, Military
• Florencio Coronado Romani, C.Ss.R. (1 March 1956 – 14 January 1982)
• William Dermott Molloy McDermott (14 January 1982 – 18 June 2005)
• Isidro Barrio Barrio (18 June 2005 – 21 May 2021)
• Carlos Alberto Salcedo Ojeda, O.M.I. (21 May 2021 – present)

• Isidro Barrio Barrio (2002-2005)

• William Dermott Molloy McDermott (1976–1982), appointed Bishop here

• Roman Catholicism in Peru

• GCatholic.org
• Catholic Hierarchy

12°47′15″S 74°58′24″W / 12.7876°S 74.9732°W / -12.7876; -74.9732