| Name | Country | Feature class | Latitude | Longitude | |
|---|---|---|---|---|---|
1601  | Courtmacsherry  Courtmacsherry,Cuirt Mhic Sheafraidh,Cúirt Mhic Shéafraidh,Kortmaksheri,Kortmaksherri,Кортмакшери,Ко... | Ireland, Munster Cork | populated place population 520 | N 51° 37′ 59'' | W 8° 42′ 18'' |
| 1602 | Corrofin Corofin,Correfin,Corrofin | Ireland, Connacht Galway | populated place population 627 | N 53° 26′ 16'' | W 8° 51′ 58'' |
| 1603 | Cornamona Cornamona,Corr na Mona,Corr na Móna,Kornamona,Корнамона,კორნამონა | Ireland, Connacht Galway | populated place | N 53° 31′ 0'' | W 9° 27′ 0'' |
| 1604 | Cornafulla Cornafulla,Corr na Fola,Kornofulla,Корнофулла,კორნაფულა | Ireland, Connacht County Roscommon | populated place | N 53° 22′ 32'' | W 8° 0′ 1'' |
1605  | Cork Lough Cork Lough,Lough of Cork | Ireland, Munster Cork | lake | N 51° 53′ 10'' | W 8° 29′ 17'' |
1606  | Corcogemore Corcogemore,Leckavrea Mountain | Ireland, Connacht Galway | mountain elevation 609m | N 53° 29′ 0'' | W 9° 35′ 0'' |
| 1607 | Cootehall Cootehall,Uachtar Thire,Uachtar Thíre,კუტჰოლი | Ireland, Connacht County Roscommon | populated place population 184 | N 53° 58′ 57'' | W 8° 9′ 13'' |
| 1608 | Cooraclare Cooraclare,Cuar an Chlair,Cuar an Chláir | Ireland, Munster Clare | populated place | N 52° 42′ 3'' | W 9° 25′ 15'' |
| 1609 | Coonagh Coonagh,Cuanach | Ireland, Munster Limerick | populated place | N 52° 39′ 47'' | W 8° 41′ 22'' |
| 1610 | Coolrain Coolrain,Cuil Ruain,Cúil Ruáin | Ireland, Leinster Laois | populated place | N 52° 58′ 47'' | W 7° 34′ 7'' |
| 1611 | Coolkenno Coolkenna Street,Coolkenno,Cuil Ui Chionaoith,Cúil Uí Chionaoith,Kulkenno,Кулкенно,კულკენო | Ireland, Leinster County Wicklow | populated place | N 52° 46′ 57'' | W 6° 35′ 48'' |
| 1612 | Coolgreany Coolgreany,Cuil Ghreine,Cúil Ghréine,Kulgrani,Кулграни | Ireland, Leinster County Wexford | populated place population 376 | N 52° 45′ 46'' | W 6° 14′ 8'' |
| 1613 | Coolea Coolea,Cuil Aodha,Cúil Aodha | Ireland, Munster Cork | populated place | N 51° 55′ 0'' | W 9° 13′ 0'' |
| 1614 | Coole An Chuil,An Chúil,Coole | Ireland, Leinster County Westmeath | populated place | N 53° 42′ 0'' | W 7° 23′ 0'' |
| 1615 | Coolboy An Cul Bui,An Cúl Buí,Coolboy | Ireland, Leinster County Wicklow | populated place population 144 | N 52° 45′ 34'' | W 6° 27′ 37'' |
| 1616 | Coolaney Coolaney,Cuil Aine,Cúil Áine,Kulani,Кулани,კულანი | Ireland, Connacht County Sligo | populated place population 990 | N 54° 10′ 22'' | W 8° 36′ 7'' |
| 1617 | Connolly Connolly,Fioch Rua,Fíoch Rua | Ireland, Munster Clare | populated place | N 52° 49′ 46'' | W 9° 11′ 35'' |
| 1618 | Conna Conaithe,Conna,Conna Castle,Konna,Конна | Ireland, Munster Cork | populated place population 526 | N 52° 5′ 27'' | W 8° 6′ 38'' |
| 1619 | Cong Cong,Conga | Ireland, Connacht County Mayo | populated place population 145 | N 53° 32′ 37'' | W 9° 17′ 13'' |
| 1620 | Coney Island Coney Island,Inis Ui Mhaolchluiche,Inis Uí Mhaolchluiche,Inish Mulclohy | Ireland, Connacht County Sligo | island | N 54° 17′ 55'' | W 8° 35′ 16'' |
| 1621 | Comeragh Mountains Comeragh Mountains | Ireland, Munster County Waterford | mountains | N 52° 16′ 47'' | W 7° 33′ 59'' |
| 1622 | Collon Collann,Collon | Ireland, Leinster Louth | populated place population 896 | N 53° 46′ 52'' | W 6° 29′ 13'' |
| 1623 | Collinstown Baile na gCailleach,Collinstown,Collinstown - Baile na gCailleach,Kollinstaun,korinzutaun,Коллинстау... | Ireland, Leinster County Westmeath | populated place population 336 | N 53° 38′ 39'' | W 7° 12′ 24'' |
| 1624 | Collegeland Cnoc an Linsigh,Cnoc an Línsigh,Collegeland | Ireland, Leinster Meath | populated place | N 53° 29′ 44'' | W 6° 41′ 1'' |
| 1625 | Coalbrook Coalbrook,Glaise an Ghuail | Ireland, Munster County Tipperary | populated place | N 52° 36′ 49'' | W 7° 34′ 58'' |
| 1626 | Coachford Ath an Choiste,Coachford,Kochford,Áth an Chóiste,Кочфорд | Ireland, Munster Cork | populated place population 431 | N 51° 54′ 34'' | W 8° 47′ 30'' |
| 1627 | Cloon Lough Clogh Lough,Cloon Lough | Ireland, Connacht County Mayo | lake | N 53° 42′ 0'' | W 9° 18′ 0'' |
| 1628 | Cloonfad Cloonfad,Cluain Fada,Klunfad,Клунфад,კლუნფადი | Ireland, Connacht County Roscommon | populated place population 308 | N 53° 41′ 13'' | W 8° 45′ 4'' |
| 1629 | Cloone An Chluaine,Cloone,Cluain Conmaicne | Ireland, Connacht Leitrim | populated place | N 53° 57′ 0'' | W 7° 47′ 0'' |
| 1630 | Cloondara Cloondara,Cluain Da Rath,Cluain Dá Ráth,Klundara,Клундара | Ireland, Leinster Co Longford | populated place | N 53° 44′ 0'' | W 7° 55′ 0'' |
| 1631 | Cloonacool Cloonacool,Cluain na Cuile,Cluain na Cúile,Klunakul,Клунакул,კლუნაკული | Ireland, Connacht County Sligo | populated place | N 54° 6′ 7'' | W 8° 46′ 39'' |
| 1632 | Clonygowan Cloneygowan,Clonygowan,Cluain na nGamhan,Klonigauan,Клонигауан | Ireland, Leinster County Offaly | populated place population 198 | N 53° 11′ 15'' | W 7° 16′ 44'' |
| 1633 | Clontibret Clontibret,Cluain Tiobrad,Klontibret,ke lun di bu la de,kurontiburetto,Клонтибрет,クロンティブレット,克伦蒂布拉德 | Ireland, Ulster Monaghan | populated place population 191 | N 54° 12′ 58'' | W 6° 51′ 3'' |
| 1634 | Clontarf Clontarf,Cluain Tarbh,Klontarf,Klontarfas,dblyn,ke lang ta fu (ai er lan),klwntarf,kurontafu,Κλοντάρ... | Ireland, Leinster Dublin City | populated place | N 53° 21′ 44'' | W 6° 12′ 29'' |
| 1635 | Clonsilla Clonsilla,Cluain Saileach,Klonsilla,Клонсилла | Ireland, Leinster Fingal | populated place | N 53° 23′ 0'' | W 6° 25′ 0'' |
| 1636 | Clonroche Clonroche,Cluain an Roistigh,Cluain an Róistigh,Klonroch,Клонроч | Ireland, Leinster County Wexford | populated place population 326 | N 52° 26′ 59'' | W 6° 42′ 45'' |
| 1637 | Clonoulty Clonoulty,Cluain Abhla,Klonoulti,Клоноулти | Ireland, Munster County Tipperary | populated place | N 52° 36′ 7'' | W 7° 57′ 37'' |
| 1638 | Clonony Clonona,Clonony,Cluain Damhna Beag | Ireland, Leinster County Offaly | populated place | N 53° 14′ 7'' | W 7° 55′ 30'' |
| 1639 | Clonmore Clonmore,Cluain Mhor,Cluain Mhór | Ireland, Leinster Carlow | populated place | N 52° 49′ 29'' | W 6° 34′ 8'' |
| 1640 | Clonmellon Clonmellon,Raistin,Ráistín | Ireland, Leinster County Westmeath | populated place population 664 | N 53° 39′ 49'' | W 7° 1′ 4'' |
| 1641 | Clonmany Clonmany,Cluain Maine,Klonmani,kuronmeni,Клонмани,クロンメニー | Ireland, Ulster Donegal | populated place population 470 | N 55° 16′ 0'' | W 7° 25′ 0'' |
| 1642 | Clonfert Clonfert,Cluain Fearta,Cluain Fearta) | Ireland, Connacht Galway | populated place | N 53° 14′ 20'' | W 8° 3′ 24'' |
| 1643 | Clonevin Cross Roads Clonevan,Clonevin Cross Roads | Ireland, Leinster County Wexford | populated place | N 52° 33′ 25'' | W 6° 13′ 52'' |
| 1644 | Clonegall Clonegal,Clonegall,Cluain na nGall | Ireland, Leinster Carlow | populated place population 278 | N 52° 41′ 26'' | W 6° 38′ 43'' |
| 1645 | Clonee Clonee,Clonee Village,Cluain Aodha,Kloni,Клони | Ireland, Leinster Meath | populated place population 826 | N 53° 24′ 42'' | W 6° 26′ 39'' |
| 1646 | Clondulane Clondulane,Cluain Dallain,Cluain Dalláin,Klondalejn,Клондалейн | Ireland, Munster Cork | populated place population 417 | N 52° 8′ 33'' | W 8° 13′ 24'' |
| 1647 | Cloonbur An Fhairche,Clonbur,Cloonbur,Klonber,kuronba,Клонбер,კლონბური,クロンバー | Ireland, Connacht Galway | populated place | N 53° 32′ 0'' | W 9° 22′ 0'' |
| 1648 | Clonaslee Clonaslee,Cluain na Sli,Cluain na Slí,Klonasli,Klonaslis,Клонасли | Ireland, Leinster Laois | populated place population 566 | N 53° 8′ 51'' | W 7° 31′ 28'' |
| 1649 | Clonard Clonard,Cluain Ioraird | Ireland, Leinster Meath | populated place population 347 | N 53° 27′ 8'' | W 7° 1′ 23'' |
| 1650 | Clohamon Cloch Amainn,Cloch Ámainn,Clohamon,Klokhamon,Клохамон | Ireland, Leinster County Wexford | populated place | N 52° 38′ 17'' | W 6° 37′ 1'' |
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