| Girl | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z |
| Boy | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z |
| Girl | ||||||||||||
| A | B | C | D | E | F | G | H | I | J | K | L | M |
| N | O | P | Q | R | S | T | U | V | W | X | Y | Z |
| Boy | ||||||||||||
| A | B | C | D | E | F | G | H | I | J | K | L | M |
| N | O | P | Q | R | S | T | U | V | W | X | Y | Z |
| Name | Meaning | Gender | Numerology |
|---|---|---|---|
| Cathmore | Great warrior | Boy | 2 |
| Cathrine | Form of the Greek Catherine meaning pure | Girl | 6 |
| Catriona | Pure, clear | Girl | 9 |
| Cavan | handsome | Boy | 5 |
| Cayden | spirit of battle | Boy | 7 |
| Cayla | Slender Variant of Caley or Cailley French from the forest | Girl | 6 |
| Caylee | Slender Variant of Caley or Cailley French from the forest | Girl | 6 |
| Cayleigh | party | Girl | 7 |
| Cayley | Slender Variant of Caley or Cailley French from the forest | Girl | 8 |
| Caylie | Slender Variant of Caley or Cailley French from the forest | Girl | 1 |
| Caylin | Girl lass | Girl | 1 |
| Ceallach | Warrior maid | Girl | 9 |
| Ceallach | Warrior | Boy | 9 |
| Ceannfhionn | Blond | Boy | 4 |
| Ceara | Spear | Girl | 1 |
| Cearbhallan | Small champion | Boy | 5 |
| Cearnach | Victorious | Boy | 8 |
| Ceileachan | Little champion | Boy | 7 |
| Cein | Ancient | Boy | 4 |
| Ceit | Pure | Girl | 1 |
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| Charraigaich | Rocky headland | Boy | 5 |
| Choilleich | Guards the forest | Boy | 3 |
| Cian | Ancient | Boy | 9 |
| Ciarda | Dark | Girl | 9 |
| Ciardubhan | Little black one | Boy | 9 |
| Cinnard | From the high hill | Boy | 9 |
| Cinneididh | Helmeted | Boy | 7 |
| Cinnfhail | From the head of the cliff | Boy | 4 |
| Ciorstag | Christian | Girl | 2 |
| Ciorstan | Christian | Girl | 9 |
| Cleary | Scholar | Boy | 1 |
| Cleirach | Scholar | Boy | 5 |
| Clunainach | From the meadow | Boy | 5 |
| Cluny | From the meadow | Boy | 3 |
| Cobhan | Dwells by the hillside hollow | Boy | 7 |
| Coigleach | Distaff | Boy | 9 |
| Coilin | Virile | Boy | 8 |
| Coillcumhann | From the narrow forest | Boy | 8 |
| Coilleach | Guards the forest | Boy | 5 |
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| Coinneach | Handsome | Boy | 9 |
| Coire | Ravine | Boy | 5 |
| Colan | Child | Boy | 9 |
| Coleen | Girl | Girl | 9 |
| Colin | Child or virile | Boy | 8 |
| Coll | Child | Boy | 6 |
| Collan | Variant of Cullen Handsome good-looking lad | Boy | 3 |
| Colle | Dwells at the woodland | Boy | 2 |
| Colleen | Girl | Girl | 3 |
| Collin | Child | Boy | 2 |
| Colm | Servant of Saint Columba | Boy | 7 |
| Colum | Dove | Boy | 1 |
| Columbanus | Dove | Boy | 4 |
| Comhghan | Twin | Boy | 6 |
| Con | Exalted | Girl | 5 |
| Conaire | Wise | Boy | 2 |
| Conlan | Hero | Boy | 5 |
| Conlin | Hero | Boy | 4 |
| Connlan | Hero | Boy | 1 |
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| Conway | Hound of the plain | Boy | 9 |
| Corcoran | of reddish complexion | Boy | 6 |
| Corcurachan | Reddish skinned | Boy | 6 |
| Corey | Ravine | Boy | 3 |
| Cori | Ravine | Boy | 9 |
| Cormac | Charioteer Famous bearer, a legendary third century Irish king | Boy | 8 |
| Cormack | Charioteer | Boy | 1 |
| Cormick | Charioteer | Boy | 9 |
| Corwin | From beyond the hill | Boy | 1 |
| Corwyn | From beyond the hill | Boy | 8 |
| Coty | Ravine | Boy | 9 |
| Cowan | Dwells by the hillside hollow | Boy | 2 |
| Coyle | Searches for battle | Boy | 6 |
| Craig | Dwells at the Crag | Boy | 2 |
| Creag | Dwells at the Crag | Boy | 7 |
| Criostoir | Christ bearer | Boy | 9 |
| Crisdean | Christ bearer | Boy | 1 |
| Cronan | Dark brown | Boy | 2 |
| Cuilean | Cub | Boy | 2 |
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| Cuinn | Wise | Boy | 7 |
| Cullan | Handsome | Boy | 9 |
| Cullen | Handsome good-looking lad | Boy | 4 |
| Culley | Dwells at the woodland | Boy | 6 |
| Cullin | Variant of Cullen Handsome good-looking lad | Boy | 8 |
| Cully | Handsome or dwells at the woodland | Boy | 1 |
| Cunningham | Village that has a milk pail | Boy | 5 |
| Curadhan | Hero | Boy | 7 |
| Curney | Hero | Boy | 5 |
| Curr | Hero | Boy | 6 |
| Curran | hero | Boy | 3 |
| Currie | Dagger | Boy | 2 |
| Curry | Dagger | Boy | 4 |
| D'Ary | Dark | Boy | 3 |
| Dace | Diminutive of Dacey From the south | Boy | 4 |
| Dacey | Southerner | Boy | 2 |
| Dacey | southerner | Girl | 2 |
| Dacia | Variant of Dacey From the south | Boy | 9 |
| Dacian | Variant of Dacey From the south | Boy | 5 |