Name
- Church of England1
- Churchill, John, 1st Duke of Marlborough1
- Clark, John, surveyor al Clarke1
- Clarke, John, Dr1
- Clayton, Robert, MP, Lord Mayor of London1
- Clayton, Thomas, Professor of Medicine at Oxford1
- Clignet, John1
- Coale, —, merchant1
- Coffy, Thomas, of Balliboggan1
- Coggs, John, goldsmith of London1
- College of Physicians, Dublin1
- Collieson, William1
- Colquit, John1
- Commonwealth, England1
- Congreve, William, dramatist1
- Connell, Maurice, in Kerry1
- Conner, James1
- Connor, John, gardener to 1st Marquess of Lansdowne1
- Cook, Robert, Captain al Cooke1
- Cooper, Francis, surveyor1