C
| Title | Date of creation | Surname | Current status | Notes |
|---|---|---|---|---|
| Caldwell of Rossberg | 1683 | Caldwell | extinct 1858 | |
| Carden of Templemore | 1787 | Carden | extant | |
| Chapman of Killua Castle | 1782 | Chapman | extinct 1919 | |
| Chinnery of Flintfield | 1799 | Chinnery | extinct 1868 | |
| Cogan of Greenwich | 1657 | Cogan | extinct 160 | |
| Colclough of Tintern Abbey | 1628 | Colclough | extinct 1687 | |
| Cole of Newland | 1661 | Cole | extinct 1754 | second Baronet created Baron Ranelagh in 1715 |
| Colthurst of Ardrum | 1744 | Colthurst | extant | |
| Cooke of Dublin | 1741 | Cooke | extinct 178 | |
| Cooper of Dublin | 1758 | Cooper | extinct 1761 | |
| Coote of Castle Cuffe | 1621 | Coote | extant | |
| Coote of Donnybrooke | 1774 | Coote | extinct 1922 | |
| Cotter of Rockforest | 1763 | Cotter | extant | |
| Courtenay of Newcastle | 1621 | Courtenay | extinct c. 1700 | |
| Cox of Castletown | 1706 | Cox | extinct 1873 | |
| Crofton of the Mote | 1758 | Crofton | dormant | fourth Baronet succeeded as Baron Crofton in 1817; Baronetcy dormant (9th Baronet died 1989) - under review |
| Crofton of the Mote | 1661 | Crofton | extinct 1780 | |
| Cromie of Stacrombie | 1776 | Cromie | extinct 1841 | |
| Crooke of Baltimore | 1624 | Crooke | extinct c. 1666 | |
| Cusack-Smith of Tuam | 1799 | Smyth, Cusack-Smith | extinct 1970 |
Read more about this topic: List Of Baronetcies In The Baronetage Of Ireland