| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Coignashie | city | Highland | United Kingdom | 57.23 | -4.13 | 1669 | 0 |
| Coilacriech | city | Aberdeenshire | United Kingdom | 57.05 | -3.12 | 944 | 1043 |
| Coill ??ochtair | city | Derry and Strabane | United Kingdom | 54.67 | -7.68 | 830 | 3233 |
| Coill an Cholpa | city | Mid Ulster | United Kingdom | 54.58 | -6.58 | 190 | 4147 |
| Coill an Lao | city | Derry and Strabane | United Kingdom | 54.92 | -7.18 | 971 | 10160 |
| Coill-liag | city | Causeway Coast and Glens | United Kingdom | 55.05 | -6.70 | 262 | 5296 |
| Coille Dobhair | city | East Dunbartonshire | United Kingdom | 55.90 | -4.23 | 249 | 149376 |
| Coilleach Eanach | city | Newry, Mourne and Down | United Kingdom | 54.13 | -6.58 | 830 | 6245 |
| Coillemore | city | Highland | United Kingdom | 57.30 | -5.65 | 301 | 0 |
| Coillidh Chanannáin | city | Armagh, Banbridge and Craigavon | United Kingdom | 54.29 | -6.85 | 229 | 2455 |
| Coillidh Léith | city | Armagh, Banbridge and Craigavon | United Kingdom | 54.35 | -6.78 | 229 | 2567 |
| Coillore | city | Highland | United Kingdom | 57.35 | -6.38 | 282 | 0 |
| Coinnire | city | Mid and East Antrim | United Kingdom | 54.80 | -6.20 | 416 | 7292 |
| Coirantee | city | Argyll and Bute | United Kingdom | 56.07 | -4.98 | 830 | 0 |
| Coity | city | Bridgend | United Kingdom | 51.52 | -3.55 | 249 | 39054 |