| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 301 | Conant | Irish | Variant of Conan: Hound; elevated. Famous bearer: Talk show host Conan O'Brien. | M | |
| 302 | Conary | Irish | An ancient Irish name whos meaning is lost in antiquety. | M | |
| 303 | Conchobhar | Irish | Strong dog; strong willed or wise. | M | |
| 304 | Concobhar | Irish | Variant of Conchobhar: Strong dog; strong willed or wise. | M | |
| 305 | Conlan | Irish | Hero. | M | |
| 306 | Conlen | Irish | Variant of Conlan: Hero. | M | |
| 307 | Conleth | Irish | Ardent or wise. | M | |
| 308 | Conley | Irish | Strong willed or wise. Also a diminutive of Conlan: Hero. | M | |
| 309 | Conlin | Irish | Variant of Conlan: Hero. | M | |
| 310 | Conlon | Irish | Variant of Conlan: Hero. | M | |
| 311 | Conn | Irish | Wise; high and mighty. | M | |
| 312 | Connacht | Irish | Brave or wise. | M | |
| 313 | Connal | Irish | High and mighty. | M | |
| 314 | Connell | Irish | Variant of Conall: High and mighty. | M | |
| 315 | Conner | Irish | Hound lover. Variant of Connor: Full of desire; much desire. | M | |
| 316 | Connie | Irish | Strong willed or wise. Also a diminutive of Conlan: Hero. | M | |
| 317 | Connlaio | Irish | Ardent or wise. | M | |
| 318 | Connlaodh | Irish | Pure fire. | M | |
| 319 | Connlaoi | Irish | Variant of Connlaodh: Pure fire. | M | |
| 320 | Connlaoth | Irish | Variant of Connlaodh: Pure fire. | M | |