Name
- Cochrane, Alexander Inglis Forrester, Hon; Admiral1
- Cochrane, Thomas John, Admiral1
- Cockburn, Alexander, diplomatist1
- Cockburn, George, 8th Baronet, naval officer, 1772-18531
- Codrington, Christopher William, MP; self-styled 5th Baronet 18431
- Codrington, Christopher, afterwards Bethell-Codrington self-styled 4th Baronet1
- Coke, Thomas, Baron Lovell, 4th Earl of Leicester, 1880-19491
- Colborne, Maurice, alias Colbron; lawyer, of Gray's Inn1
- Colburn, Henry, publisher1
- Cole, Galbraith Lowry, General; GCB1
- Cole, John, of Add MS 361961
- Coleman, Thomas, tidewaiter at Belfast1
- Coleridge, John Taylor, Justice of Queen's Bench1
- Colles, Abraham, Professor of Anatomy at Dublin1
- Colthurst, Nicholas Conway, 4th Baronet, MP for Cork1
- Compton, Henry, Bishop of London1
- Coningsby, Thomas, 1st Earl of Coningsby1
- Conybeare, John, Dean of Christ Church, Oxford; Bishop of Bristol 17501
- Cook, Thomas, of Dewsbury1
- Cooke, Henry, Moderator of Belfast General Assembly1