- Cabinet, A Cocktail
- Cahill, Patrick
- CALLIGARIS
- Calvet, M.
- Campano, Miguel Angel
- Campbell, Anna
- Campbell, Christopher
- Campbell, George
- Campbell, John Henry
- Canney, Michael
- Canning, Michael
- Cannole, Marie
- Canogar, Rafael Garcia
- canvases, Pair of Sailing
- Caracciolo, Niccolo D'ardia
- Cardew, Michael
- Carey, J. W.
- Carey, Joseph William
- Carman, Cathy
- Carollo, Gino
- Carr, Desmond
- Carr, Eithne
- Carr, Tom
- Carrick, Desmond
- Carroll, Marie
- Carroll, Rebecca
- Carroll, T.
- Carron, William
- Carson, Robert Taylor
- Casey, Comhghall
- Casey, Jerome
- Casey, Michael
- Cassina
- CASTIGLIONI, ACHILLE
- Castle, Barry
- Caulfield, Patrick
- Cavanagh, N.
- CEADOGAN,
- Chabrolle, Marie-Paule Deville
- Chadwick, Lynn
- Chanel, Coco
- Charles, Jean
- Cherner, Benjamin
- Cherner, Norman
- Chests, A Pair of
- Chests, Bedside
- CHICHESTER, JULIAN
- Chidambaram, Suchi
- Chiesa, Pietro
- Chillida, Eduardo
- Chiosain, Fionnuala Ni
- Chriagain, Mairin Ni
- Christie, John
- CHRISTOU, KNOWLES
- Citterio, Antonio
- Clarke, Brid
- Clarke, Carey
- Clarke, David
- Clarke, Margaret
- Clarke, William
- Clear, Ciaran
- Cliffe, Henry
- Co., C. F. Hancock &
- Coen, John
- Coin, A Isle of Man Proof
- Coleman, Eamon
- Coleman, James
- Coleman, Michael
- Coll, John
- Collie, Clifford
- Collie, George
- Collins, Martin
- Collins, Michael
- Collins, Patrick
- Collis, Peter
- Colman, Eamon
- Comerford, Elizabeth
- Comerford, John
- CONCEPT, BO
- Conn, William H
- Connoll, Samuel
- Connor, Jerome
- Conor, William
- CONSTANTINI, PIETRO
- Cooke, Barrie
- Cooke, Martin
- Cope, Elizabeth
- Copperwhite, Diana
- Corbierre, Jacqueline
- Corbusier, Jean Le
- CORINTO,
- Cormican, Garret
- Cosgrove, Kevin
- Costa, Franco
- Costello, Eileen
- Costello, Robert
- Coughlin, Jack
- Cover, First Day
- Covers, First Day
- Cox, John
- Coy, James
- Coyle, Gary
- Craig, Harry Robertson
- Craig, James Humbert
- Crampton Walker, John
- Creswick, Thomas
- Critchlow, Keith
- Crone, David
- Cronin, John
- Crooks, Jackie
- Cross, Christopher
- Cross, Dorothy
- Crotty, Aidan
- Crotty, Colin
- Crozier, William
- Cudworth, Jack
- Cuffe, Siobhan
- Cullen, Charles
- Cullen, Mark
- Cullen, Michael
- Cullen, Stephen
- Cullen, Tom
- Cundall, Charles
- Curling, Peter
- Cusack, Julie
- Cusack, Ralph
