| Description: | Most popular names for male newborns in New Zealand 2021 |
| Source: | Department of Internal Affairs - Births, Deaths and Marriages |
| Series: | New Zealand |
| Following list: | 2022 |
| Previous list: | 2020 |
| Highest new entries: | Nico (new at 64), Freddie (new at 80), Otis (new at 85), Gabriel (new at 89), Isaiah (new at 89) |
| Largest rises: | Nikau +29 (now at 44), Ari +23 (now at 74), Lincoln +21 (now at 33), Joseph +21 (now at 45), River +20 (now at 58) |
| Largest falls: | Jayden -29 (now at 99), Luke -26 (now at 64), Ryan -22 (now at 70), Benjamin -21 (now at 43), Austin -21 (now at 80) |
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