The Roman Catholic Diocese of Ciego de Avila is a suffragan Latin diocese of the Metropolitan Archdiocese of Camagüey, in Cuba.

Its cathedral episcopal see is St. Eugene's Cathedral, Ciego de Ávila.

• Established on 1996.02.02 as Diocese of Ciego de Ávila / Cæci Abulen(sis) (Latin), on Cuban territory split off from the then Diocese of Camagüey, now its Metropolitan.

As per 2015, it served 190,343 Catholics (40.9% of 465,628 total) on 7,887 km² in 5 parishes and 36 missions with 8 priests (6 diocesan, 2 religious), 2 deacons, 18 lay religious (2 brothers, 16 sisters) and 1 seminarian .

(all Roman Rite)

Suffragan Bishops of Ciego de Ávila

• Mario Eusebio Mestril Vega (2 February 1996 - retired 2017.07.08), previously Titular Bishop of Cediæ (16 November 1991 – 2 February 1996) as Auxiliary Bishop of Camagüey (Cuba)
• Juan Gabriel Diaz Ruiz (8 July 2017 – 7 April 2022).

• List of Catholic dioceses in Cuba

• GCatholic, with Google satellite photo - data for all sections
• "Diocese of Ciego de Avila". Catholic-Hierarchy. Retrieved 2007-02-12.

21°50′29″N 78°45′37″W / 21.8414°N 78.7603°W / 21.8414; -78.7603