Name
- Butler, Walter, 19th Earl of Ormonde and Ossory; Marquess of Ormonde 18163
- Campbell, Archibald, of Blythswood; MP3
- Cane, Edward, Secretary to President of India, Board3
- Canning, Charles John, 1st Earl Canning, statesman and Governor-General of India, 1812-18623
- Canning, George, Prime Minister, 1770-18273
- Capell, Arthur Algernon, 6th Earl of Essex, formerly Capel3
- Chancery of Ireland3
- Child-Villiers, George, 5th Earl of Jersey3
- Cockburn, George, General; GCH3
- Conway, Frederick William, Irish journalist3
- Conyngham, Henry, 1st Marquess Conyngham3
- Cooper, Anthony, 7th Earl of Shaftesbury, philanthropist and politician, 1801-18853
- Cooper, Cropley, 6th Earl of Shaftesbury, politician, 1768-18513
- Copleston, Edward, Reverend, Provost of Oriel College Oxford and Bishop of Llandaff, fl 18283
- Corry, James, Secretary, Irish Linen Office3
- Costello, Charles, Barrack-master at Ballaghaderreen3
- Cotton, William, Governor of the Bank of England3
- County Palatine of Lancaster3
- Crampton, Philip, 1st Baronet 1839, Surgeon-General in Ireland3
- Craven, Charles, Perpetual Curate of St. Peter's, Birmingham3