| N A M E | O R I G I N | M E A N I N G |
| Cledwyn | Welsh | Rough; blessed. |
| Cleirach | Gaelic | Scholar. |
| Cleit | Scottish | Rocky eminence. |
| Clem | English | From the name CLEMENT |
| Cleme | English | Diminutive of Clement: Gentle. Famous Bearer: Clement Moore, writer of 'Twas the Night Before Christmas'. |
| Clemen | English | Variant of Clement: Gentle. Famous Bearer: Clement Moore, writer of 'Twas the Night Before Christmas'. |
| Clemence | Latin | Merciful. |
| Clemens | English | From the name CLEMENT |
| Clement | Latin | merciful |
| Clemente | English | Variant of Clement: Gentle. Famous Bearer: Clement Moore, writer of 'Twas the Night Before Christmas'. |
| Clementius | Dutch | Merciful. |
| Clemento | English | Variant of Clement: Gentle. Famous Bearer: Clement Moore, writer of 'Twas the Night Before Christmas'. |
| Clemmie | English | Diminutive of Clement: Gentle. Famous Bearer: Clement Moore, writer of 'Twas the Night Before Christmas'. |
| Clemmons | English | Variant of Clement: Gentle. Famous Bearer: Clement Moore, writer of 'Twas the Night Before Christmas'. |
| Clemmy | English | Diminutive of Clement: Gentle. Famous Bearer: Clement Moore, writer of 'Twas the Night Before Christmas'. |
| Clennan | Scottish | Finnian's servant. |
| Cleobis | Greek | Son of a priestess. |
| Cleon | English | From the cliff. |
| Cleophas | Biblical | The whole glory. |
| Clerc | English | Variant of Clark: Scholar. |
| Clerk | English | Variant of Clark: Scholar. |
| Cletus | Greek | Variant of Anakletos: Calling forth; summoned. |
| Cleve | English | Cliffs. Abbreviation of Cleveland. |
| Cleveland | Old English | land near the hill, from the cliffs |
| Clevon | African-American | Variant of Cleavon: Cliff. |
| Cleytus | Greek | Illustrious. |
| Cliamon | Scottish | Gentle. |
| Cliff | English | From the name CLIFFORD |
| Clifford | Old English | hill, near a slope |
| Cliffton | English | From the farm near the cliff. |
