Most Popular Names Portugal 2021
| Description: | Most popular names for male newborns in Portugal 2021 |
| Source: | Instituto dos Registos e do Notariado (IRN) / Portuguese Institute of Registries and Notaries |
| Series: | Portugal |
| Following list: | 2022 |
| Previous list: | 2020 |
| Highest new entries: | |
| Largest rises: | Lourenço +2 (now at 6), Martim +2 (now at 9) |
| Largest falls: | Rodrigo -6 (now at 15), Gabriel -2 (now at 8) |
| Rank | Name | +/- | Graph |
|---|---|---|---|
| 1 | Francisco | Graph | |
| 2 | João | Graph | |
| 3 | Duarte |  2 | Graph |
| 4 | Afonso |  1 | Graph |
| 5 | Tomás | 1 | Graph |
| 6 | Lourenço | 2 | Graph |
| 7 | Santiago | Graph | |
| 8 | Gabriel | 2 | Graph |
| 9 | Martim | 2 | Graph |
| 10 | Miguel | Graph | |
| 11 | Mateus | 2 | Graph |
| 12 | Vicente | Graph | |
| 13 | Guilherme | 2 | Graph |
| 14 | Lucas | Graph | |
| 15 | Rodrigo | 6 | Graph |
| 16 | Salvador | Graph | |
| 17 | Pedro | Graph | |
| 18 | Dinis | 1 | Graph |
| 19 | Gonçalo | 1 | Graph |
| 20 | Rafael | Graph |