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- Cabin Hill, Belfast
- Cairncastle Primary School, Cairncastle, County Antrim
- Cainshill Primary School. Belfast, County Down
- Camphill Primary School, Ballymena, County Antrim
- Cavehill Primary School, Belfast, County Antrim
- Carhill Primary School, Garvagh, County Londonderry
- Carlane Primary School, Toome, County Antrim
- Carnaghts Primary School, Shankbridge, County Antrim
- Carnalbanagh Primary School, Glenarm, County Antrim
- Carnalridge Primary School, Portrush, County Antrim
- Carniny Primary School, Ballymena, County Antrim
- Carnlough Primary School, Carnlough, County Antrim
- Carnmoney Primary School, Newtownabbey, County Antrim
- Carntall Primary School, Clogher, County Tyrone
- Carrickfergus Central Primary School, Carrickfergus, County Antrim
- Carrickfergus Model Primary School, Carrickfergus, County Antrim
- Carrick Primary School, Lurgan, Lurgan, County Armagh
- Carrick Primary School, Warrenpoint, Warrenpoint, County Down
- Carrowreagh Primary School, Ballymoney, County Antrim
- Carr Primary School, Lisburn, County Down
- Carrs Glen Primary School, Belfast, County Antrim
- Carryduff Primary School, Carryduff, County Down
- Castlecaulfield Primary School, Castlecaulfield, County Tyrone
- Castledawson Primary School, Castledawson, County Londonderry
- Castle Gardens Primary School, Newtownards, County Down
- Castleroe Primary School, Coleraine, County Londonderry
- Christian Brothers Primary School, Greenpark, County Armagh
- Churchill Primary School, Caledon, County Tyrone
- Churchtown Primary School, Cookstown, County Tyrone
- Clare Primary School, Clare, County Armagh
- Clea Primary School, Keady, County Armagh
- Clintyclay Primary School, Dungannon, County Tyrone
- Clogher Regional Primary School, Clogher, County Tyrone
- Clonalig Primary School, Crossmaglen, County Armagh
- Clontifleece Primary School, Warrenpoint, County Down
- Clough Primary School, Clogh, County Antrim
- Cloughmills Primary School, Cloughmills, County Antrim
- Cloughoge Primary School, Newry, County Down
- Coagh Primary School, Coagh, County Tyrone
- Collone Primary School, Armagh
- Comber Primary School, Comber, County Down
- Convent of Mercy Primary School, Rostrevor, County Down
- Cookstown Primary School, Cookstown, County Tyrone
- The Cope Primary School, Loughgall, County Armagh
- Corran Primary School, Larne, County Antrim
- Cortamlet Primary School, Altnamackin, Newry, County Down
- Craigavon Primary School, Gilford, County Down
- Cranmore Integrated Primary School, Belfast
- Creavery Primary School, Antrim
- Cregagh Primary School. Belfast, County Down
- Creggan Primary School, Randalstown, County Antrim
- Crievagh Primary School, Cookstown, County Tyrone
- Cross Roads Primary School, Kilrea, County Londonderry
- Crumlin Primary School, Crumlin, County Antrim
- Culcrow Primary School, Aghadowey, County Londonderry
- Cullycapple Primary School, Aghadowey, County Londonderry
- Culnady Primary School, Culnady, County Londonderry
Read more about this topic: List Of Primary Schools In Northern Ireland