| Description: | Most popular names for male newborns in Portugal 2017 |
| Source: | Instituto dos Registos e do Notariado (IRN) / Portuguese Institute of Registries and Notaries |
| Series: | Portugal |
| Following list: | 2018 |
| Previous list: | 2016 |
| Highest new entries: | Liam (new at 75), Matheus (new at 76), Jonathan (new at 81), Arthur (new at 86), Christian (new at 86) |
| Largest rises: | Lorenzo +10 (now at 52), Sérgio +9 (now at 83), Benjamim +7 (now at 56), Gaspar +7 (now at 79), Tomé +7 (now at 64) |
| Largest falls: | Edgar -21 (now at 100), César -16 (now at 100), Emanuel -11 (now at 95), Renato -10 (now at 69), Fernando -10 (now at 91) |
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