diocesan departments
- Accounting
- Archivist Emeritus
- Canonical Services, Office of
- Catholic Relief Services
- Cemeteries
- Censor Librorum
- Child and Youth Protection, Office of
- Communications, Office of
- Construction Management Services
- Deacons serving in the Diocese of Orange
- Deaf Center, Catholic
- Diaconate
- Facilities
- Finance & Accounting
- General Counsel
- Hispanic Ministry
- Human Resources
- Institute for Pastoral Ministry
- Liaison to Catholic Healthcare
- Life, Justice and Peace
- Ministry to Priests
- Mission Office
- Orange County Catholic Newspaper
- Orange County Catholic Radio
- Pastoral Care for Families in All Stages, Office of
- Priests Serving in the Diocese of Orange
- Real Estate Department
- Risk Management and Insurance Services, Office of
- Scouts, Boy and Girl
- Vocations
- Worship, Office for
