| Name | Origin | Planet | Metall | Zodiac | Lucky number |
| ♂ Corwine | England | ♀ Venus | Copper | ♎ Libra,♉ Taurus | 42/6 |
| ♂ Corwyn | England | ♂ Mars, ♄ Saturn | Iron, Tin | ♏ Scorpio,♑ Capricorn | 35/8 |
| ♂ Corwynn | England | ♄ Saturn, ☿ Mercury | Tin | ♍ Virgo | 40/4 |
| ♂♀ Cory | English | ☾ Moon, ♆ Neptune | Zinc, Tin | ♓ Pisces,♍ Virgo | 25/7 |
| ♂ Corybantes | Greece | ☿ Mercury, ♅ Uranus | Mercury | ♊ Twins,♒ Aquarius | 41/5 |
| ♂ Corydon | England | ♄ Saturn, ☿ Mercury | Tin | ♍ Virgo | 40/4 |
| ♂ Coryell | England | ♂ Mars, ♃ Jupiter | Iron | ♈ Aries,♐ Sagittarius | 36/9 |
| ♂ Cos | Greece | ☉ Sun | Gold | ♌ Leo | 10/1 |
| ♂ Cosgrave | Ireland | ♂ Mars, ♃ Jupiter | Iron | ♈ Aries,♐ Sagittarius | 36/9 |
| ♂ Cosgrove | Ireland | ☿ Mercury, ♅ Uranus | Mercury | ♊ Twins,♒ Aquarius | 41/5 |
| ♂ Cosimo | Italian | ☾ Moon | Silver | ♎ Libra | 29/2 |
| ♂ Cosmas | Greece | ☾ Moon, ♆ Neptune | Zinc, Tin | ♓ Pisces,♍ Virgo | 16/7 |
| ♂ Cosmo | Greece | ☾ Moon | Silver | ♎ Libra | 20/2 |
| ♂ Costa | England | ♄ Saturn, ☿ Mercury | Tin | ♍ Virgo | 13/4 |
| ♂ Costard | England | ♂ Mars, ♄ Saturn | Iron, Tin | ♏ Scorpio,♑ Capricorn | 26/8 |
| ♂ Costello | Ireland | ☾ Moon | Silver | ♎ Libra | 29/2 |
| ♂ Cottus | Greece | ♂ Mars, ♄ Saturn | Iron, Tin | ♏ Scorpio,♑ Capricorn | 17/8 |
| ♂ Coty | English | ♂ Mars, ♃ Jupiter | Iron | ♈ Aries,♐ Sagittarius | 18/9 |
| ♂ Coughlan | Ireland | ♂ Mars, ♃ Jupiter | Iron | ♈ Aries,♐ Sagittarius | 36/9 |
| ♂ Coulson | England | ♂ Mars, ♃ Jupiter | Iron | ♈ Aries,♐ Sagittarius | 27/9 |
| ♂ Coulter | England | ♄ Saturn, ☿ Mercury | Tin | ♍ Virgo | 31/4 |
| ♂ Court | English | ☿ Mercury, ♅ Uranus | Mercury | ♊ Twins,♒ Aquarius | 23/5 |
| ♂ Courtenay | England | ☿ Mercury, ♅ Uranus | Mercury | ♊ Twins,♒ Aquarius | 41/5 |
| ♂ Courtland | England | ♂ Mars, ♃ Jupiter | Iron | ♈ Aries,♐ Sagittarius | 36/9 |
| ♂ Courtlandt | England | ☾ Moon | Silver | ♎ Libra | 38/2 |
| ♂ Courtnay | England | ♂ Mars, ♃ Jupiter | Iron | ♈ Aries,♐ Sagittarius | 36/9 |
| ♂♀ Courtney | England | ♄ Saturn, ☿ Mercury | Tin | ♍ Virgo | 40/4 |
| ♂ Covell | England | ♀ Venus | Copper | ♎ Libra,♉ Taurus | 24/6 |
| ♂ Covey | Ireland | ☾ Moon, ♆ Neptune | Zinc, Tin | ♓ Pisces,♍ Virgo | 25/7 |
| ♂ Covyll | England | ♂ Mars, ♄ Saturn | Iron, Tin | ♏ Scorpio,♑ Capricorn | 26/8 |
| ♂ Cowan | Gaelic | ☾ Moon | Silver | ♎ Libra | 20/2 |
| ♂ Cowen | Ireland | ♀ Venus | Copper | ♎ Libra,♉ Taurus | 24/6 |
| ♂ Cowin | Latin-America | ☉ Sun | Gold | ♌ Leo | 28/1 |
| ♂ Cowyn | Ireland | ♂ Mars, ♄ Saturn | Iron, Tin | ♏ Scorpio,♑ Capricorn | 26/8 |
| ♂♀ Coy | England | ☾ Moon, ♆ Neptune | Zinc, Tin | ♓ Pisces,♍ Virgo | 16/7 |
| ♂ Coyan | France | ♄ Saturn, ☿ Mercury | Tin | ♍ Virgo | 22/4 |
| ♂♀ Coye | England | ♃ Jupiter | Zinc, Tin | ♓ Pisces, ♐ Sagittarius | 21/3 |
| ♂ Coyle | Gaelic | ♀ Venus | Copper | ♎ Libra,♉ Taurus | 24/6 |
| ♂ Coyne | France | ♂ Mars, ♄ Saturn | Iron, Tin | ♏ Scorpio,♑ Capricorn | 26/8 |
| ♂ Coz | Israel | ♂ Mars, ♄ Saturn | Iron, Tin | ♏ Scorpio,♑ Capricorn | 17/8 |
| ♂ Cradawg | Celtic | ♃ Jupiter | Zinc, Tin | ♓ Pisces, ♐ Sagittarius | 30/3 |
| ♂ Craddock | England | ☿ Mercury, ♅ Uranus | Mercury | ♊ Twins,♒ Aquarius | 32/5 |
| ♂ Cradoe | England | ☉ Sun | Gold | ♌ Leo | 28/1 |
| ♂ Craig | Gaelic | ☾ Moon | Silver | ♎ Libra | 29/2 |
| ♂ Crandal | England | ♂ Mars, ♄ Saturn | Iron, Tin | ♏ Scorpio,♑ Capricorn | 26/8 |
| ♂ Crandall | England | ☾ Moon | Silver | ♎ Libra | 29/2 |
| ♂ Crandell | England | ♀ Venus | Copper | ♎ Libra,♉ Taurus | 33/6 |
| ♂ Cranleah | England | ♂ Mars, ♄ Saturn | Iron, Tin | ♏ Scorpio,♑ Capricorn | 35/8 |
| ♂ Cranleigh | England | ☿ Mercury, ♅ Uranus | Mercury | ♊ Twins,♒ Aquarius | 50/5 |
| ♂ Cranley | England | ♀ Venus | Copper | ♎ Libra,♉ Taurus | 33/6 |