Contacts under C
- Care Tribunal
- Carrickfergus Registration office
- Causeway, Coast and Glens District Registrar - Ballycastle registration office
- Causeway, Coast and Glens District Registrar - Ballymoney registration office
- Causeway, Coast and Glens District Registrar - Coleraine Registration office
- Causeway, Coast and Glens District Registrar - Limavady Registration office
- Census Office for Northern Ireland - Census Customer Services
- Central Appointments Unit
- Commission for Victims and Survivors
- Commissioner for the Ulster-Scots and the Ulster-British Tradition
- Compensation Services
- Congratulatory Messages - The Centenarian and Anniversary Clerk
- Cookstown Office
- Craigavon Registration office
- Crown Solicitor's Office