| Description: | Most popular names for male newborns in Ireland 2021 |
| Source: | Central Statistics Office Ireland (CSO) |
| Series: | Ireland |
| Following list: | 2022 |
| Previous list: | 2020 |
| Highest new entries: | Teddy (new at 76), Daithí (new at 78), Páidí (new at 78), Jaxon (new at 80), Zach (new at 81) |
| Largest rises: | Hugo +35 (now at 64), Sonny +27 (now at 54), Danny +24 (now at 41), Louis +14 (now at 67), Sam +13 (now at 40) |
| Largest falls: | Cathal -21 (now at 89), Benjamin -16 (now at 66), Logan -15 (now at 70), David -14 (now at 47), Robert -12 (now at 85) |
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