Janssens

surname · Dutch · Latin script

Recorded for both men and women· direction only, no split published

Janssens is a surname, with more bearers in Belgium than in any other country, where it is the 4th most common surname. It appears chiefly in Dutch and German, written in the Latin script. Recorded meaning: Borrowed from Dutch Janssens.

rarermore common
  • BEBelgium1 in 387◐
  • NLNetherlands1 in 4.5K
  • USUnited States1 in 597K

carrying the name, one hue, darker where it is more common. Hover a country for its figure.

≈35K ●

across 13 countries

2 ●

recorded for this name

Sources
165 ●

16K records

Official registry-verified

1 in 387 ◐

Belgium

Spellings & scripts●

JanssensLatin · Dutch●74K records
เจนสเซนสThai · Thai●1 records

Spellings marked ● are how people bearing the name write it in our records; ○ marks a model's transliteration. Click a spelling to open its page.

Meaning & origin●

Borrowed from Dutch Janssens.

Sources 3

  • Dictionary of American Family Names
  • The Oxford Dictionary of Family Names in Britain and Ireland
  • Wiktionary

Where in the world●

Sorted by bearers counted by national registers, records where none counts.

Where Janssens is recorded, by country
CountryMost common spellingSources
BE Belgium#430,296△11K rec.1 in 38730KJanssens165
NL Netherlands#2903,8322K rec.1 in 4.5K3.8KJanssens77
US United States—5572.2K rec.1 in 597K559Janssens153
GB United Kingdom—260168 rec.——Janssens49
CA Canada—230201 rec.——Janssens42
ES Spain—169249 rec.1 in 296K169Janssens30
FR France—1660 rec.1 in 409K166—2
CH Switzerland—101△34 rec.1 in 83K101Janssens19
ZA South Africa—9578 rec.——Janssens17
TH Thailand—5632 rec.—#864,278Janssens15
IT Italy—3737 rec.——Janssens8
FI Finland—31△3 rec.1 in 180K31Janssens2

Roughly 30K people in Belgium bear this name (about 1 in 387). Estimates project the name's share of our records onto national population, so each is only as good as the record base beside it — the Basis column gives that base; rows marked △ rest on fewer records than the estimate itself and are order-of-magnitude at best.

Country figures for a list of names, at full precision, are available under licence rather than by scraping this table. How that works.

Languages●

  • Dutch74K54%
  • German32K23%
  • French12K9%
  • English7K5%
  • Western Frisian3.8K3%
Show as table
Languages in which the name is recorded
NameRecordsNote
Dutch73,62954%
German31,97123%
French11,7849%
English6,9915%
Western Frisian3,8323%

Language is read off each record's context, not declared by the bearer; a share is of all records for this spelling.

Other names spelled this way◐

Janssens is also recorded as 3 other names, grouped separately because the records behind them do not connect to the one described above.

  • German surname32K records spelled Janssens2 spellings in the group

    Most recorded in Belgium, Germany, Switzerland, Netherlands

    Also written Janßens

  • English surname8.3K records spelled Janssens2 spellings in the group

    Most recorded in United States, Belgium, Netherlands, Australia

    Also written Jäñssëñs

  • Spanish surname2.1K records spelled Janssens4 spellings in the group

    Most recorded in Spain, Belgium, Netherlands, United States

    Languages: Spanish, Portuguese

    Also written Jãnssèns

44 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.

Over time●

010020030019001920194019601980245 · 1941

Show as table
Janssens in INSEE — Fichier des noms de famille (1891–2000), France, 1891–1991
Yearrecords
189197
1901149
1911158
1921227
1931167
1941245
1951241
1961196
1971223
1981192
1991166

FR INSEE — Fichier des noms de famille (1891–2000) — 11 years between 1891–1991. One register's own figures, never a sum across registers: two registers counting the same people would double them.

Notable people with this name●

1400160018002000Abraham Janssens I, b. 1575Victor Honoré Janssens, b. 1658Jan Willem Janssens, b. 1762Jean-Baptiste Janssens, b. 1889Émile Janssens, b. 1902Frans Janssens, b. 1945Patrick Janssens, b. 1956Kevin Janssens, b. 1979Hillary Janssens, b. 1994Eva Janssens, b. 1996

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).

Evidence●

Attested in 26 sources across 15 countries.

Official registers attesting Janssens
CountryRegisterYearCountRank
BE BelgiumFamilienaam.be — Belgian family-name frequency (population register)200830K#2
BE BelgiumStatbel — Noms de famille (family names)—28K#2
AW ArubaThis page presents data on the most common family names in Belgium, published by Statbel, the Belgian statistical office202528K#2
NL NetherlandsCBG Familienamenbank — Dutch surname bearer counts (GBA/BRP 2007)20073.8K#245
US United StatesCensus Bureau — Surname Frequency 20202020559#41,891
US United StatesCensus Bureau — Surname Frequency 20102010557#39,486
US United StatesCensus Bureau — Surname Frequency 20002000522#39,617
FR FranceINSEE — Fichier des noms de famille (1891–2000)1941245—
FR FranceINSEE — Fichier des noms de famille (1891–2000)1951241—
FR FranceINSEE — Fichier des noms de famille (1891–2000)1921227—
FR FranceINSEE — Fichier des noms de famille (1891–2000)1971223—
FR FranceINSEE — Fichier des noms de famille (1891–2000)1961196—

Reference works 5

  • Dictionary of American Family Names
  • The Oxford Dictionary of Family Names in Britain and Ireland
  • Nederlandse FamilienamenBank (Dutch surname bank; ex-Meertens Instituut, now CBG)2007
  • 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 2026-09-12 data build · 38 rows in the corpus for this spelling.

Frequently asked questions

How common is the name Janssens?
We estimate roughly 35 thousand people bear Janssens (counting its spellings and scripts) across 13 countries in our records.
In which country does Janssens have the most bearers?
We estimate about 30 thousand people bear Janssens in Belgium, more than in any other country in our records, where it is most often spelled janssens.
Where is Janssens most common?
Janssens is densest in Belgium, where the national register counts about 1 in 387 people carrying it.
How common is Janssens compared with other names?
In Belgium, Janssens is the 4th most common surname of 299,621 surnames recorded there.
What does the name Janssens mean?
Recorded meaning: Borrowed from Dutch Janssens.
Query this name via API
curl https://api.mondonomo.ai/api/v1/name-graph/janssens

The same payload this page is built from: spellings and scripts, countries and languages, related names, and the registers that attest the form. Rate-limited for casual use. Bulk access and licensing.

About this data

● measured from records◐ inferred from the name graph○ machine-generated

Data snapshot . Figures are rebuilt periodically and will change.

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, “Janssens” — the 4th most common surname in Belgium. Data snapshot 2026-09-12.

See how Janssens parses inside a full name →