Names of Iceland IS
In Iceland the second name is a patronymic — the father's given name, renewed each generation — rather than an inherited family name; Hagstofa Íslands — most common ættarnöfn (Hagtíðindi 2018) records Blöndal as the commonest surname in Iceland.
Written in Icelandic.
- Population
- 351K
- Official registers
- 6
- Name forms recorded
- 4.3K
Official registers for given names and surnames, plus a written account of the naming system.
The account of the naming system rests on encyclopaedia and genealogy sources; it has not yet been checked against onomastic literature.
How names work in Iceland
Names in Iceland follow one naming tradition. Its structure, its given-name and surname stock, how to address someone and what trips software up are set out on its own page.
The most common names in Iceland
| # | Name | Bearers recorded | Our rank |
|---|---|---|---|
| 1 | Anna | 4.8K | — |
| 2 | Guðrún | 4.5K | 5 |
| 3 | Kristín | 3.4K | — |
| 4 | Sigríður | 3.2K | 9 |
| 5 | Margrét/margrjet/margret | 2.8K | 81 |
| 6 | Helga | 2.7K | 11 |
| 7 | Sigrún | 2.5K | — |
| 8 | Ingibjörg | 2.1K | — |
| 9 | María | 2K | — |
| 10 | Jóhanna | 1.9K | — |
| 11 | Katrín | 1.6K | — |
| 12 | Elín | 1.6K | 22 |
| 13 | Eva | 1.5K | — |
| 14 | Hildur | 1.5K | — |
| 15 | Sara | 1.4K | — |
| 16 | Lilja | 1.4K | — |
| 17 | Elísabet/Elísabeth | 1.3K | — |
| 18 | Ragnheiður | 1.2K | — |
| 19 | Ásta | 1.2K | — |
| 20 | Guðbjörg | 1.2K | 37 |
No inherited surnames here
Where the two lists disagree
24 of Hagstofa — population register names 2023's top 25 given names sit five or more places away in our record corpus. Neither ranking is wrong; they count different people.
The register counts one population in one year — everyone it enumerates, once. Our corpus counts records: historical registers going back decades, the diaspora, business and place records, and several generations of births. A name that was common two generations ago outranks a name common today; a name whose spelling scatters across sources (diacritics dropped, transliterated differently) loses ground, because only its dominant spelling is ranked.
Characteristic of Iceland
Not the most common names — the most distinctive ones. A name appears here when Iceland holds a larger share of its bearers than the world does, weighted by how much of the country's whole name distribution it accounts for.
Over time
Up to five names at a time.
Scripts & spelling
The Latin alphabet here is not the ASCII one. Stripping diacritics merges names that are not the same name and changes how they are pronounced, and a record that has been ASCII-folded has lost information no amount of guessing recovers.
Countries whose names look alike
Measured as the overlap between each country's top 300 given-name forms, weighted by how common each is — the fuzzy-set approach of Lauc (2024), on a truncated inventory.
Registers & sources
Official registers
- Hagstofa — population register names 20232023headline (given)
Statistics Iceland (Hagstofa Íslands). Counts: residents. given. 101 forms. 2023.
What we know about this register
Auto-backfilled registry stub (2026-06-05); verify publisher/URL. 208 rows, name_types=['given'], evidence=[]. source note:
Last verified 2026-06-05.
- Hagstofa Íslands — most common ættarnöfn (Hagtíðindi 2018)2017headline (surnames)
Statistics Iceland (Hagstofa Íslands). Counts: residents. surname. 3 forms. 2017. Licence: Open data.
What we know about this register
The only official ættarnafn FREQUENCIES: 'Algengustu ættarnöfnin voru Blöndal (324), Thorarensen (293) og Hansen (282)' at 2017-01-01, against 640 registered ættarnöfn of which nearly 400 were actually borne, by about 12,000 people (~4% of the population). Same Hagtíðindi release ('Mannanöfn og nafngiftir á Íslandi', 2018-02-26) already held as is-hagstofa-naming-practice, whose parser took only the given-name top-3 and MISSED the surname section entirely — hence this separate surname-only source. Only 3 rows, but they are the sole bearer counts in existence for Icelandic family names; the existence list is is-arnastofnun-aettarnofn. The three figures are asserted in the fetcher and VERIFIED against the live PDF text at runtime, so an upstream revision fails loudly instead of silently. Neither Þjóðskrá nor the StatBank publishes any surname table: svc.skra.is NafnTidni rejects kenninafn=/eftirnafn=/millinafn= with HTTP 400, and px.hagstofa.is has given-name tables only. Fetcher scripts/fetch_is_aettarnofn.py.
Last verified 2026-07-30.
- Þjóðskrá Íslands — Name frequencies (NafnTíðni, registry)2026not a population count
Registers Iceland (Þjóðskrá Íslands). Counts: residents. given. 34,009 forms. 2004–2026. Licence: Open data.
What we know about this register
Per-name query API from the National Registry (Þjóðskrá). FULLY ENUMERATED as of 2026-07-30: the name parameter is a SQL LIKE pattern, so eiginnafn=A%25 returns every registered name starting with A, and one query per initial letter dumps the whole register — 34,166 eiginnafn + 22,634 annadnafn = 46,901 distinct names ever borne. This REPLACED a seed-list probe that reached only 9,005 names (19% coverage); every probed name was a subset of the enumeration, so nothing was lost. Enumerate a-z plus the Icelandic letters á é í ó ú ý þ æ ö ð and the Nordic å ø: diacritic folding applies only to letters OUTSIDE the Icelandic alphabet (ā%25 == a%25, ś%25/ş%25 == s%25), while Icelandic letters collate as distinct. `%25` alone times out (504); there is no row cap (summing two-char prefixes a?%25 reproduces the a%25 total exactly) and NO suppression threshold — exact counts are returned down to 1. svfn is optional; 9999 = 'Allt landið'. Each response is a yearly series (FjoldiAr) of living bearers in that position; the CURRENT-year figure is a rolling live value, not a 1 January snapshot (observed to move within days). ONE ROW PER NAME with count = first + second position, the split kept in data_note as position_first=/position_second= — emitting the two positions as separate rows was unsafe because build_combined dedupes on (source_id, name, sex, year, name_type, region_code) and silently dropped one of them. data_note also carries status=current or status=historical;last_seen=YYYY (12,753 names whose series died out; these include 614 patronymic-shaped registry artifacts such as Ívarsdóttir/Bjarnason that sat in the eiginnafn field and went to 0 in 2023 — filter on status, NOT on a -son/-dóttir suffix, since Jason/Nelson/Mason/Madison are genuine current given names). name_type is 'given' for BOTH slots: `annadnafn` is a POSITION, not the legal category millinafn — 3,626 committee-approved eiginnöfn occur in that slot against only 218 approved millinöfn, and it also holds family-derived middle names in no register at all (annadnafn=Blöndal -> 55-65 bearers, absent from Mannanafnaskrá). The authoritative millinafn flag is is-mannanafnaskra type=millinafn. NO SURNAME ROWS: the API exposes no kenninafn/eftirnafn dimension (those params return HTTP 400) and annadnafn=Jónsson / Jónsdóttir return []; note however that eiginnafn=Jónsson DOES return data (8 bearers in 2021, 0 from 2023). Icelandic hereditary surnames come from is-arnastofnun-aettarnofn. Fetcher scripts/fetch_is_skra.py; raw JSON cached under raw/IS/skra_enum/.
Last verified 2026-07-30.
- Hagstofa Íslands — Given-name frequency by population (2005)2005not a population count
Statistics Iceland (Hagstofa Íslands). Counts: not recorded. given. 150 forms. 2005. Licence: Open data.
What we know about this register
Eiginöfn karla/kvenna eftir aldri 1. janúar 2005 — given names by age band, men (MAN11120a) and women (MAN11121). Using the 'Alls' (total) age band yields a 2005 whole-population given-name frequency, a historical snapshot distinct from the 2023 registry (is-hagstofa-registry). Rank computed by descending count within (year, sex).
Last verified 2026-06-02.
- Hagstofa Íslands — Newborn first/sole given names (2021)2021not a population count
Statistics Iceland (Hagstofa Íslands). Counts: not recorded. given. 61 forms. 2021. Licence: Open data.
What we know about this register
Einnefni og fyrsta nafn — first or sole given name of children born 2021, boys (MAN11103) and girls (MAN11113). Name and display rank are embedded in the Röð valueText; counts from Eining=Fjöldi. Variant spellings are grouped by the source with '/' (e.g. Matthías/Mattías/Mathías). Distinct from the 2023 population-registry snapshot already held as is-hagstofa-registry.
Last verified 2026-06-02.
Statistics Iceland (Hagstofa Íslands). Counts: not recorded. given. 78 forms. Licence: Open data.
What we know about this register
First names, second names, and double names. Continuous from 1978; census data from 1703–1920. StatBank downloadable as CSV/Excel. R package 'hagstofan' wraps the API.
Last verified 2026-05-09.
Sub-national registers
Cited works
Behind this page's own account — its one-line answer, its explanation of why the rankings differ, and the notes on its registers. Each naming tradition cites its own sources on its page. Not yet checked against onomastic literature.
- *herre*encyclopaedia
- Ancestry: what -son/-sen endings meangenealogy
- Denmark naming rulesweb
- Denmark's approved-names coverage (TODAY/The Local)web
- Du-reformenencyclopaedia
- Icelandic nameencyclopaedia
- Naming law in Swedenencyclopaedia
- Scandinavian family name etymologyencyclopaedia
- Wiktionary: *fru*encyclopaedia
About this data
Official figures are reproduced from the register named beside them, at the year named beside them, and are never combined across registers. The "across all records" ranking counts records in our own corpus — historical registers, the diaspora, business and place records — and is not a population count. Bearer estimates are omitted where a name accounts for more than a quarter of a country's records, because the estimate is not defensible there. Names listed by reference works and licensed name dictionaries are cited as attesting a name; their figures are not published.
Data snapshot: 2026-09-12.
Questions
- What is the most common given name in Iceland?
- Anna, according to Hagstofa — population register names 2023 (2023), with 4,782 bearers recorded among girls.
- What is the most common surname in Iceland?
- Blöndal, according to Hagstofa Íslands — most common ættarnöfn (Hagtíðindi 2018) (2017), with 324 bearers recorded.
- Why do sources disagree about the commonest name in Iceland?
- Because they count different people. Hagstofa — population register names 2023 (2023) counts one population once, and its commonest given name is Anna. Our corpus counts every record we hold — historical registers, the diaspora, decades of births — and its commonest is Guðrún. Both are on this page, each with its denominator.
- Do people in Iceland have surnames?
- Icelandic naming is patronymic (Jónsson/Jónsdóttir) and inherited family names (ættarnöfn) have been legally closed to new adoption since 1925, so the stock is a small fixed list — 639 harvested from is-hagstofa-aettarnofn and is-arnastofnun-aettarnofn, which is close to complete. The high-value Icelandic target is GIVEN names plus the Mannanafnaskrá approved-names register, not surnames.
Cite this page: Mondonomo, “Names of Iceland”, https://nelma.mondonomo.ai/names/IS (data snapshot 2026-09-12). Official figures from Hagstofa — population register names 2023; Hagstofa Íslands — most common ættarnöfn (Hagtíðindi 2018).