Name
- Carleton, John, Alderman of Dublin1
- Carroll, Thomas, of Cork1
- Carteret, John, Baron Carteret, Earl Granville, Secretary of State, etc1
- Cator, John1
- Causton, William1
- Charles I, King of England, Scotland and Ireland, 1600-16491
- Chetwynd, Richard, 5th Viscount Chetwynd1
- Chichester, George Augustus, 2nd Marquess of Donegall1
- Christian, Robert, deputy of Sir George Paul, Master of Requests1
- Clarke, Thomas, MP for St. Michael's, etc., Master of the Rolls (1754)1
- Clements, Elizabeth, widow of Robert, 1st Earl of Leitrim1
- Clements, Henry John, Irish Treasury Commissioner1
- Coke, Thomas, Baron Lovell, 4th Earl of Leicester, 1880-19491
- Cole, Galbraith Lowry, General; GCB1
- Colthurst, Nicholas Conway, 4th Baronet, MP for Cork1
- Conybeare, John, Dean of Christ Church, Oxford; Bishop of Bristol 17501
- Cooper, Edward Synge, MP1
- Coote, Charles, 1st Earl of Mountrath1
- Corbett, Richard, Bishop of Norwich1
- Cornewall, Velters, MP for county Herefordshire1