| Description: | Most popular names for male newborns in Belgium 2021 |
| Source: | SPF Économie - Direction générale Statistiques / FOD Economie - Algemene Directie Statistiek |
| Series: | Belgium |
| Following list: | 2022 |
| Previous list: | 2020 |
| Highest new entries: | Gaston (new at 49), Noé (new at 67), Lio (new at 78), Naël (new at 79), Theo (new at 80) |
| Largest rises: | Georges +45 (now at 42), Maël +28 (now at 41), Lyam +20 (now at 73), Nolan +20 (now at 71), Thomas +20 (now at 73) |
| Largest falls: | Enzo -41 (now at 98), Owen -31 (now at 92), Robin -30 (now at 62), Ethan -26 (now at 65), Mats -26 (now at 86) |
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