BoysGirls
| Rank | Name | Births |
|---|---|---|
| 401 | 401Eric | 3 |
| 402 | 402Erikas | 3 |
| 403 | 403Felix | 3 |
| 404 | 404Finian | 3 |
| 405 | 405Fionan | 3 |
| 406 | 406Fionnbharr | 3 |
| 407 | 407Frank | 3 |
| 408 | 408Fraser | 3 |
| 409 | 409Gearoid | 3 |
| 410 | 410Gustas | 3 |
| 411 | 411Harris | 3 |
| 412 | 412Hughie | 3 |
| 413 | 413Hunter | 3 |
| 414 | 414Issac | 3 |
| 415 | 415Ivo | 3 |
| 416 | 416Izaac | 3 |
| 417 | 417Jeremy | 3 |
| 418 | 418Joey | 3 |
| 419 | 419Jon | 3 |
| 420 | 420Joris | 3 |
| 421 | 421Josiah | 3 |
| 422 | 422Kajus | 3 |
| 423 | 423Kayne | 3 |
| 424 | 424Keenan | 3 |
| 425 | 425Kieron | 3 |
| 426 | 426Kody | 3 |
| 427 | 427Kole | 3 |
| 428 | 428Kori | 3 |
| 429 | 429Kyran | 3 |
| 430 | 430Maison | 3 |
| 431 | 431Malachy | 3 |
| 432 | 432Mikey | 3 |
| 433 | 433Mohamed | 3 |
| 434 | 434Nataniel | 3 |
| 435 | 435Olaf | 3 |
| 436 | 436Pascal | 3 |
| 437 | 437Ralph | 3 |
| 438 | 438Robin | 3 |
| 439 | 439Rocco | 3 |
| 440 | 440Rohan | 3 |
| 441 | 441Rossa | 3 |
| 442 | 442Ruaidhri | 3 |
| 443 | 443Se | 3 |
| 444 | 444Simon | 3 |
| 445 | 445Spencer | 3 |
| 446 | 446Stevie | 3 |
| 447 | 447Tai | 3 |
| 448 | 448Terence | 3 |
| 449 | 449Vincent | 3 |
| 450 | 450Wyatt | 3 |
| 451 | 451Xander | 3 |
Source: Northern Ireland Statistics and Research Agency (NISRA), Baby Names. © Crown copyright. Contains public sector information licensed under the Open Government Licence v3.0. Data years: 1997 to 2025. Coverage: Names given 3 or more times in a year; NISRA records names without accents. Original data · Licence