Most Popular Names Iceland 2021
| Description: | Most popular names for male newborns in Iceland 2021 |
| Source: | Statistics Iceland |
| Series: | Iceland |
| Following list: | 2022 |
| Previous list: | 2020 |
| Highest new entries: | Mattías (new at 7), Mathías (new at 7), Mikkael (new at 7), Mikkel (new at 7), Óðinn (new at 12) |
| Largest rises: | Jökull +14 (now at 2), Óliver +7 (now at 9), Elmar +6 (now at 10), Atlas +6 (now at 10), Matthías +2 (now at 7) |
| Largest falls: | Viktor -8 (now at 15), Birnir -3 (now at 15), Emil -2 (now at 5), Alexander -1 (now at 3) |
| Rank | Name | +/- | Graph |
|---|---|---|---|
| 1 | Aron | Graph | |
| 2 | Jökull |  14 | Graph |
| 3 | Alexander |  1 | Graph |
| 4 | Kári | Graph | |
| 5 | Emil | 2 | Graph |
| 6 | Jón | Graph | |
| 7 | Matthías + Mattías + Mathías | 2 | Graph |
| 7 | Mikael + Mikkael + Mikkel | 2 | Graph |
| 9 | Óliver | 7 | Graph |
| 10 | Atlas | 6 | Graph |
| 10 | Elmar | 6 | Graph |
| 12 | Óðinn |  | Graph |
| 12 | Stefán + Stefan | | Graph |
| 12 | Theódór + Theodór | | Graph |
| 15 | Birnir | 3 | Graph |
| 15 | Ísak | | Graph |
| 15 | Kristján + Kristian + Christian | | Graph |
| 15 | Sigurður | | Graph |
| 15 | Viktor + Victor | 8 | Graph |
| 20 | Baldur | | Graph |
| 20 | Birkir | | Graph |
| 20 | Brynjar | | Graph |
| 20 | Tómas | | Graph |
| 24 | Dagur | | Graph |
| 25 | Úlfur | | Graph |
| 26 | Bjartur | | Graph |
| 26 | Daníel | | Graph |
| 26 | Fannar | | Graph |
| 26 | Guðmundur | 18 | Graph |
| 26 | Róbert + Robert | | Graph |
| 26 | Styrmir | | Graph |
| 32 | Ari | | Graph |
| 32 | Bjarki | | Graph |
| 32 | Jóhann | | Graph |
| 32 | Kristófer | 27 | Graph |
| 32 | Óskar | | Graph |
| 37 | Baltasar | | Graph |
| 37 | Benedikt | 25 | Graph |
| 37 | Ólafur + Olav | | Graph |
| 40 | Benjamín | | Graph |
| 40 | Einar | | Graph |
| 40 | Hrafn | | Graph |
| 40 | Jakob | | Graph |
| 40 | Jakop | | Graph |
| 40 | Magnús | | Graph |
| 45 | Erik + Eric | | Graph |
| 45 | Hjörtur | | Graph |
| 45 | Hlynur | | Graph |
| 45 | Máni | | Graph |
| 45 | Ýmir | | Graph |