Hasler

surname · Latin script

Meaning, in English: from Haselour (Staffordshire) or Haselor (Warwickshire, Worcestershire); first attested Robert de Heselhour’, de Haselore 1221 AssWa, 1287 AssSt

Recorded as a male name· opposite-gender records fall within measured source noise

/ˈhæsəɫɝ/(machine-generated) pronunciation, model-generated

Hasler is a surname written in the Latin script, with more bearers in Switzerland than in any other country. In Liechtenstein it is the 10th most common surname.

rarermore common
  • CHSwitzerland1 in 1.9K(measured from records)
  • DEGermany≈1 in 40K
  • AUAustralia≈1 in 57K

carrying the name, as counted by its national register where one exists and as Mondonomo estimates it elsewhere (marked ≈ and "est." on hover). One hue, darker where it is more common; hover a country for its figure.

Switzerland (measured from records)

4,412 people, 2024

Sources
244 (measured from records)

Highest-authority source

≈1 in 937 (inferred from the name graph)

Liechtenstein, est.

measured from records inferred from the name graph

Spellings & scripts(measured from records)

One other spelling is counted as the same name:

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)

from Hasel 'hazel'; one from a hazel place

Sources 1

  • Deutsche Namenkunde: Unsere Familiennamen nach ihrer Entstehung und Bedeutung

Attested across 2 languages in the etymology graph.

How Hasler is read(measured from records)

Hasler is one spelling over 2 language communities, and the dictionaries record it differently in 2 of them. Each row is what a source recorded for that language, beside the share of this name’s records the language holds. No single row is the name’s meaning.

  • English64%

    from Haselour (Staffordshire) or Haselor (Warwickshire, Worcestershire); first attested Robert de Heselhour’, de Haselore 1221 AssWa, 1287 AssSt

    as a nameA Dictionary of English Surnames

  • German19%

    from Hasel 'hazel'; one from a hazel place

    as a nameDeutsche Namenkunde: Unsere Familiennamen nach ihrer Entstehung und Bedeutung

The share is ours — how much of this name’s records each language holds. The sense beside it is the source’s, quoted and credited, including where it names a gender. We do not publish a gender of our own per language: our records carry one figure for the spelling as a whole.

Where in the world(measured from records)

Hasler 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.

Where Hasler is recorded, by country
CountryMost common spellingSources
CH Switzerland#1304,4121 in 1.9K4.4KHasler77
DE Germany—≈2,000 est.≈1 in 40K—Hasler88
US United States—1,8841 in 177K1.9KHasler244
GB United Kingdom—≈720 est.≈1 in 91KlistedHasler109
AT Austria—≈570 est.≈1 in 15K—Hasler47
AU Australia—≈450 est.≈1 in 57K—Hasler77
LI Liechtenstein#10≈42 est.≈1 in 937405Hasler25

4,412 people counted by BFS — Familiennamen der Wohnbevölkerung (surnames), 2024. 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; BFS — Familiennamen der Wohnbevölkerung (surnames); the bbc-pronouncing-dictionary-british-names register; Statistik Liechtenstein — Familiennamenstatistik (surnames). 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).

Other names spelled this way(inferred from the name graph)

Hasler is also recorded as 7 other names, grouped separately because the records behind them do not connect to the one described above.

  • Spanish surname5 spellings in the group

    Most recorded in United States, Argentina, Switzerland, Chile

    Languages: Spanish, Portuguese

    Also written Häsler, Háslér

  • French surname4 spellings in the group

    Most recorded in France, Switzerland, United States, United Kingdom

    Also written Häsler, Háslér

  • a separate name2 spellings in the group

    Also written Häsler

  • Czech surname5 spellings in the group

    Most recorded in Czechia, United States, Switzerland, United Kingdom

    Languages: Czech, Polish

    Also written Hašler, Häsler

  • Danish surname7 spellings in the group

    Most recorded in Switzerland, United States, Denmark, Sweden

    Languages: Danish, Norwegian, Swedish

    Also written Häsler

  • Italian surname2 spellings in the group

    Most recorded in Italy, United States, Switzerland, United Kingdom

    Also written Häsler

  • Russian surname6 spellings in the group

    Most recorded in Russia, Ukraine, Switzerland, United States

    Languages: Russian, Ukrainian

    Also written Хаслер, Khasler

35 further groups record this spelling and are not listed here.

Grouping is the name graph's, not a register's: two spellings join a group when the evidence links them, so a group is a claim about the records rather than about the people.

Other recorded senses(measured from records)

Hasler is also recorded in 4 other lexicons, as a different name or as an ordinary word. These are senses of the spelling, not of the name above.

  • habitational name from Haselour in Staffordshire or Haselor in Warwickshire and Worcestershire, named with Old English hcesel ‘hazel’ -I- ofer ‘hill’, ‘ridge’.

    as a nameDictionary of American Family Names

  • topographic name from Middle English hasel. Middle High German hasel + the English and German agent suffix -er.

    as a nameDictionary of American Family Names

  • In Danish, indefinite plural of hassel

    as a wordkaikki.org Wiktionary extract (IPA + transliterations)

  • In Cebuano, hustler

    as a wordkaikki.org Wiktionary extract (IPA + transliterations)

Ordered by how much of this spelling's record each language holds, so a sense from a language the name is barely used in sits last rather than first.

Notable people with this name(measured from records)

190019502000Arthur D. Hasler, b. 1908Joachim Hasler, b. 1929Otmar Hasler, b. 1953Rainer Hasler, b. 1958Adrian Hasler, b. 1964John Hasler, b. 1974Daniel Hasler, b. 1974Dominique Hasler, b. 1978David Hasler, b. 1990Nicolas Hasler, b. 1991

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)

FormalDear Hasler,
InformalHello,

Evidence(measured from records)

Attested in 28 sources across 18 countries.

Official registers attesting Hasler
CountryRegisterYearCountRank
CH SwitzerlandBFS — Familiennamen der Wohnbevölkerung (surnames)20244.4K#133
US United StatesCensus Bureau — Surname Frequency 201020101.9K#15,533
US United StatesCensus Bureau — Surname Frequency 200020001.6K#16,293
US United StatesCensus Bureau — Surname Frequency 202020201.5K#18,041
LI LiechtensteinStatistik Liechtenstein — Familiennamenstatistik (surnames)2020405—
GB United KingdomBBC Pronouncing Dictionary of British Names———
US United Stateswru Name Dictionary — US surnames, Census 2010 subset (Khanna et al.)———

Reference works 4

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

Where does the name Hasler come from?
from Hasel 'hazel'; one from a hazel place Recorded by Deutsche Namenkunde: Unsere Familiennamen nach ihrer Entstehung und Bedeutung.
How do you pronounce Hasler?
A machine transcription gives /ˈhæsəɫɝ/ (IPA) for English.
What does the name Hasler mean?
In English, from Haselour (Staffordshire) or Haselor (Warwickshire, Worcestershire); first attested Robert de Heselhour’, de Haselore 1221 AssWa, 1287 AssSt
In which country does Hasler have the most bearers?
In Switzerland, the national register counted about 4.4 thousand people named Hasler, more than in any other country we hold, where it is most often spelled hasler.
How common is the name Hasler?
In Switzerland, the national register counted 4,412 people named Hasler in 2024, about 1 in 1.9 thousand residents.
How common is Hasler compared with other names?
In Switzerland, Hasler is the 130th most common surname of 127,759 surnames recorded there.

What do you want to know about Hasler?

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Query this name via API
curl -H "X-API-Key: YOUR_KEY" https://api.mondonomo.ai/api/v1/name-graph/hasler

The 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, “Hasler” — the 130th most common surname in Switzerland. Data snapshot 2026-10-10.

See how Hasler parses inside a full name →