| Cailley | Slender. Variant of Caley or Cailley: |
| Caillic | A variant of the wise hag. |
| Cailsey | Cailsey is a variant of Casey, derived from the Gaelic name Cathasaigh, meaning 'bringer of victory'. |
| Cailym | Pillar of the church. |
| Cailyn | A pure and beautiful maiden. |
| Caimheul | A name meaning gentle soul. |
| Caimile | a family is born |
| Cain | Meaning Possessed. In the Bible Cain was the first murderer having killed his brother Abel in a fit of jealousy. |
| Cainan | Possessor, purchaser. |
| Caindale | From the clear river valley |
| Caine | Place name unrelated to the Biblical Cain. |
| Cainell | A name meaning battle hero. |
| Caio | Variant of Cai: Joy. |
| Caiphas | He that seeks with diligence; one that vomiteth |
| Caira | Caira is a feminine given name of Irish origin, meaning 'slender' or 'fair'. |
| Cairbre | A name meaning charioteer. |
| CAIRISTIONA | A follower of the Christ. |
| Cairo | A name meaning the conqueror. |
| Cairoshell | egyptian princess |
| Cais | A name meaning case or chest. |
| Caiseal | A name meaning stone fort. |
| Cait | Variant of Katherine meaning pure |
| Caitali | Sharp of Memory |
| Caitanya | Consciouness; Intelligence; Spirit; Soul |
| Caith | From the battlefield |
| Caithness | The Tragedy of Macbeth' A nobleman of Scotland. |
| Caitie | A name meaning pure or clear. |
| Caitilin | A name meaning pure and clean. |
| Caitir | Pure, unsullied |
| CaitIyn | A name meaning pure and holy. |
| Caitlan | Variant of Katherine meaning pure |
| Caitland | Variant of Katherine meaning pure |
| Caitlin | Variant of Katherine meaning pure |
| Caitlinn | Variant of Katherine meaning pure |
| Caitlyn | Variant of Katherine meaning pure |
| Caitlynn | Variant of Katherine meaning pure |
| Caitrin | Variant of Katherine meaning pure |
| Caitriona | A name meaning pure of heart. |
| Caitryn | A name meaning pure and bright. |
| Caits | Variant of Gaius: To rejoice. Famous bearer: Roman dictator Gaius Julius Caesar. |