| 1 | Arna Stefanía Gudmundsdóttir | 45.31 | | Jun 3, 2017 |
| 2 | Guðbjörg Jóna Bjarnadóttir | 45.31 | | Jun 3, 2017 |
| 3 | Hrafnhild Hermódsdóttir | 45.31 | | Jun 3, 2017 |
| 4 | Tiana Ósk Whitworth | 45.31 | | Jun 3, 2017 |
| 5 | Júlía Kristín Jóhannesdóttir | 45.54 | | May 17, 2025 |
| 6 | Gudrún Arnardóttir | 45.71 | | Jun 28, 1996 |
| 7 | Helga Halldorsdottir | 45.71 | | Jun 28, 1996 |
| 8 | Geirlaug Geirlaugsdottir | 45.71 | | Jun 28, 1996 |
| 9 | Sunna Gestsdóttir | 45.71 | | Jun 28, 1996 |
| 10 | Þórdís Eva Steinsdóttir | 45.75 | | Jun 29, 2019 |
| 11 | Birna Kristín Kristjánsdóttir | 45.75 | | Jun 29, 2019 |
| 12 | Dóróthea Jóhannesdóttir | 45.81 | | Aug 10, 2019 |
| 13 | Andrea Torfadóttir | 45.81 | | Aug 10, 2019 |
| 14 | Agnes Kristjánsdóttir | 45.81 | | Aug 10, 2019 |
| 15 | María Helga Högnadóttir | 45.88 | | Mar 27, 2026 |
| 16 | Helga Margrét Haraldsdóttir | 45.96 | | Jun 19, 2021 |
| 17 | Ísold Sævarsdóttir | 46.03 | | Jun 24, 2025 |
| 18 | Eir Hlesdottir | 46.03 | | Jun 24, 2025 |
| 19 | Hafdís Sigurðardóttir | 46.22 | | Jun 20, 2015 |
| 20 | Steinunn Erla Davithsdóttir | 46.22 | | Jun 20, 2015 |
| 21 | María Rún Gunnlaugsdóttir | 46.43 | | Jun 1, 2013 |
| 22 | Sveijnbörg Zophoniasdóttir | 46.43 | | Jun 1, 2013 |
| 23 | Björg Gunnarsdóttir | 46.44 | | Jun 21, 2014 |
| 24 | Ingibjörg Sigurðardóttir | 46.61 | | May 31, 2025 |
| 25 | Dóra Hlín Loftsdóttir | 46.86 | | Jun 18, 2011 |
| 26 | Silja Úlfarsdóttir | 47.21 | | Jun 17, 2006 |
| 27 | Linda Björk Lárusdóttir | 47.21 | | Jun 17, 2006 |
| 28 | Sigurbjörg Olafsdóttir | 47.21 | | Jun 17, 2006 |
| 29 | Margrét Lilja HRAFNKELSDÓTTIR | 47.21 | | Jun 17, 2006 |
| 30 | Hildigunnur Thorarinsdottir | 47.22 | | Jun 12, 2021 |
| 31 | Kristin Birna Ólafsdóttir-Johnson | 47.37 | | Jun 19, 2010 |
| 32 | Helga Margrét Þorsteinsdóttir | 47.46 | | Jun 20, 2009 |
| 33 | Katla Rut ROBERTSDÓTTIR Kluvers | 47.48 | | Aug 17, 2019 |
| 34 | Elísabet Ósk Jónsdóttir | 47.55 | | May 9, 2026 |
| 35 | Elizabet Rún Hallgrímsdóttir | 48.46 | | Jul 28, 2023 |
| 36 | Melkorka Rán Hafliðadóttir | 49.20 | | Jun 28, 2024 |
| 37 | Sara Kristín Lýðsdóttir | 49.20 | | Jun 28, 2024 |
| 38 | Agla María Kristjánsdóttir | 49.34 | | Jul 28, 2023 |
| 39 | Unnur Birna Unnsteinsdóttir | 55.85 | | Jun 28, 2024 |