Neilsen
surname · Latin script
Meaning: Altered spelling of Nielsen or Nilsen
Recorded as a male name· opposite-gender records fall within measured source noise
/ˈnaɪɫsən/(machine-generated) pronunciation, model-generated
Neilsen is a surname written in the Latin script, with more bearers in Denmark than in any other country, where it is the most common surname.
- DKDenmark1 in 26as Nielsen(measured from records)
- NONorway1 in 58as Nilsen
- SESweden1 in 70as Nilsson
carrying the name, as counted by its national register where one exists and as Mondonomo estimates it elsewhere (marked ≈ and "est." on hover). Where a country counts another spelling of the name rather than Neilsen itself, the figure is that spelling’s, and it is named. One hue, darker where it is more common; hover a country for its figure.
- Denmark (measured from records)
- 4 (measured from records)
- Sources
- 411 (measured from records)
- 1 in 26 (inferred from the name graph)
222,355 named Nielsen
recorded for this name
Highest-authority source
Denmark, as Nielsen
measured from records inferred from the name graph
Spellings & scripts(measured from records)
Locally spelled Nielsen in DK Denmark, GL Greenland, Nilsson in SE Sweden, BJ Benin, Nielson in US United States and Nilsen in NO Norway.
Spellings marked ● are how people bearing the name write it in our records, and ○ marks a model's transliteration; click a spelling to open its page.
Meaning & origin(measured from records)
Altered spelling of Nielsen or Nilsen.
Sources 1
- Dictionary of American Family Names
Where in the world(measured from records)
Neilsen counted together with the spellings and other-language forms grouped with it. Where a register counted another spelling, the row names it.
Sorted by bearers: national registers' counts, and Mondonomo's estimates (≈, est.) where no register counts.
| Country | Most common spelling | Sources | ||||
|---|---|---|---|---|---|---|
| DK Denmark | #1 | 222,355as Nielsen | 1 in 26 | 222K | Nielsen | 277 |
| SE Sweden | #3 | 145,463as Nilsson | 1 in 70 | 145K | Nilsson | 219 |
| NO Norway | #4 | 94,971as Nilsen | 1 in 58 | 95K | Nilsen | 148 |
| US United States | #911 | 42,773as Nielsen | 1 in 7.8K | 43K | Nielson | 411 |
| BJ Benin | #4 | ≈40,000 est. | ≈1 in 325 | — | Nilsson | 10 |
| GL Greenland | #82 | 1,346as Nielsen | 1 in 43 | 1.3K | Nielsen | 29 |
222,355 people counted by Danmarks Statistik — Hvor mange hedder...? (living-population name counts). Exact figures are national registers' own counts, while figures marked ≈ and est. are Mondonomo’s estimates, counted from our sources and calibrated against those registers; hover one for how far to trust it in that country. A dash means neither exists.
Registers cited: Census Bureau — Surname Frequency 2010; Danmarks Statistik — Hvor mange hedder...? (living-population name counts); Skatteverket — Sök hur många som har ett visst namn (living population); SSB — Navnesøk (name-search service, living population); Statistics Greenland — Surnames (NAXT1). Figures without a register are Mondonomo estimates; see Methodology.
Country figures for a list of names, at full precision, are available under licence rather than by scraping this table (how that works).
Notable people with this name(measured from records)
- Shirley Neilsen Blumb. 1932USAmerican art historian, professor, focused on Northern Renaissance art
- Lorri Neilsen Glennb. 1947CACanadian poet and ethnographer
- Philip Neilsenb. 1949AUAustralian poet
- Vibeke Neilsenb. 1959DKDanish cricketer
- Jade Neilsenb. 1991AUAustralian swimmer, Olympic silver medallist
- Eric NeilsenUSresearcher ORCID ID = 0000-0002-7357-0317
- Paul M NeilsenAUresearcher
The ten people covered by the most Wikipedia language editions — a proxy for cross-cultural notability, which favours historical and Western figures over equally prominent contemporary ones — shown by birth year. Source: Wikidata (CC0).
How to address them(machine-generated)
Evidence(measured from records)
Attested in 11 sources across 5 countries.
| Country | Register | Year | Count | Rank |
|---|---|---|---|---|
| US United States | Census Bureau — Surname Frequency 2020 | 2020 | 1.7K | #16,795 |
| US United States | Census Bureau — Surname Frequency 2010 | 2010 | 1.6K | #17,764 |
| US United States | Census Bureau — Surname Frequency 2000 | 2000 | 1.5K | #17,426 |
| US United States | wru Name Dictionary — US surnames, Census 2010 subset (Khanna et al.) | — | — | — |
Reference works 3
- Dictionary of American Family Names
- Wikipedia surname tokens
- Wikidata name items (native-script + romanized given/family names)
These works list the name; their figures are licensed and are not reproduced here.
Register rows as of the 2026-10-09 data build.
Frequently asked questions
- What does the name Neilsen mean, and where does it come from?
- Altered spelling of Nielsen or Nilsen. Recorded by Dictionary of American Family Names.
- How do you pronounce Neilsen?
- A machine transcription gives /ˈnaɪɫsən/ (IPA) for English.
- In which country does Neilsen have the most bearers?
- In Denmark, the national register counted about 222 thousand people named Nielsen, more than in any other country we hold.
- Where is Neilsen most common?
- No national register we hold counts the spelling Neilsen itself. The densest figure for its family of spellings is Denmark's: the national register counts about 1 in 26 people named Nielsen.
- How common is the name Neilsen?
- In Denmark, the national register counted 222,355 people named Nielsen, about 1 in 26 residents.
- How common is Neilsen compared with other names?
- In Denmark, Neilsen is the most common surname of 88,366 surnames recorded there.
What do you want to know about Neilsen?
Nobody replies to these one by one, but what readers ask decides what these pages answer next.
Query this name via API
curl -H "X-API-Key: YOUR_KEY" https://api.mondonomo.ai/api/v1/name-graph/neilsenThe payload this page is built from: spellings and scripts, countries and languages, related names, and the registers that attest the form. It takes a free API key (1,000 requests a day), which returns what this page shows everyone; the full country table, every register citation and the year-by-year series come with a licensed key, as does bulk access.
About this data
measured from records inferred from the name graph machine-generated
These figures come from the data snapshot of and will change as it is rebuilt.
Statistics are aggregated from the Mondonomo name corpus; related names and etymology are inferred from the name graph; pronunciation and any machine-marked transliterations are model-generated. Read how the numbers are made, including their known failure modes, and where the data comes from.
Reference works we consult — surname dictionaries, official name registers, Wikidata and Wiktionary — are named directly, beside the claims they support. The per-country source counts also include datasets of person records: we publish how many there are and their authority tier, but not their names.
Cite this page Mondonomo, “Neilsen” — the most common surname in Denmark. Data snapshot 2026-10-10.