Mertens
surname · Latin script
Meaning: Surname variant showing vowel alternation a~e in the atlas plate; bearer count 12390
Recorded for both men and women· direction only, no split published
Mertens is a surname written in the Latin script, with more bearers in Belgium than in any other country, where it is the 11th most common surname.
- BEBelgium1 in 633(measured from records)
- DEGermany≈1 in 4.6K
- NLNetherlands1 in 5K
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.
- Belgium (measured from records)
- 3 (measured from records)
- Sources
- 279 (measured from records)
- 1 in 633 (inferred from the name graph)
18,518 people, 2008
recorded for this name
Highest-authority source
Belgium
measured from records inferred from the name graph
Spellings & scripts(measured from records)
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)
Surname variant showing vowel alternation a~e in the atlas plate; bearer count 12390.
Sources 1
- Deutscher Familiennamenatlas, Band 1: Graphematik/Phonologie der Familiennamen I, Vokalismus
Attested in 1 language in the etymology graph.
Where in the world(measured from records)
Mertens 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 | ||||
|---|---|---|---|---|---|---|
| BE Belgium | #11 | 18,518 | 1 in 633 | 19K | Mertens | 141 |
| DE Germany | #312 | ≈17,000 est. | ≈1 in 4.6K | listed | Mertens | 177 |
| CD Congo - Kinshasa | #859 | ≈5,300 est. | ≈1 in 19K | — | Mertens | 4 |
| US United States | — | 4,375 | 1 in 76K | 4.4K | Mertens | 279 |
| NL Netherlands | #436 | 3,462 | 1 in 5K | 3.5K | Mertens | 84 |
| AW Aruba | — | ≈5 est. | ≈1 in 24K | 18K | — | 1 |
18,518 people counted by Familienaam.be — Belgian family-name frequency (population register), 2008. 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; the dfa-band-1 register; Familienaam.be — Belgian family-name frequency (population register); This page presents data on the most common family names in Belgium, published by Statbel, the Belgian statistical office; CBG Familienamenbank — Dutch surname bearer counts (GBA/BRP 2007). 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 recorded senses(measured from records)
Mertens is also recorded in 5 other lexicons, as a different name or as an ordinary word. These are senses of the spelling, not of the name above.
In German, Patronymic surname from Martin; variant with e-vowel. Bearer count: 12390.
as a nameDeutscher Familiennamenatlas, Band 1: Graphematik/Phonologie der Familiennamen I, Vokalismus
patronymic from a variant of the personal name Martin.
as a nameDictionary of American Family Names
In German, Umlaut-/Schwächungsvariante zu Martin < lat. Martinus; 12.390 Belege. Karte zeigt Endsilbenschwächung und Umlaut (Mert- vs. Mart-).
as a nameDeutscher Familiennamenatlas, Band 1: Graphematik/Phonologie der Familiennamen I, Vokalismus
In German, Patronym zu lat. Martinus; zeigt Umlautschreibung mit e/ä/ae sowie a/e/ö-Variation. 10 Typen/12390 Tokens.
as a nameDeutscher Familiennamenatlas, Band 1: Graphematik/Phonologie der Familiennamen I, Vokalismus
In German, Patronymischer Familienname zu Martin; zeigt die Varianten mit e, ä/ae und ee. Bearerzahl: 8786.
as a nameDeutscher Familiennamenatlas, Band 1: Graphematik/Phonologie der Familiennamen I, Vokalismus
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)
- Franz Mertensb. 1840ATPolish-Austrian mathematician
- Robert Mertensb. 1894DEGerman zoologist (1894-1975)
- Pierre Mertensb. 1939BEBelgian writer
- Jean-François Mertensb. 1946BEBelgian game theorist (1946-2012)
- Wim Mertensb. 1953BEFlemish Belgian composer, countertenor vocalist, pianist, guitarist, and musicologist
- Peter Mertensb. 1969BEBelgian sociologist and politician
- Dries Mertensb. 1987BEBelgian association football player (born 1987)
- Gregory Mertensb. 1991BEBelgian footballer (1991–2015)
- Elise Mertensb. 1995BEBelgian tennis player
- Tim Mertensb. 2000USeditor
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(measured from records)
Attested in 38 sources across 23 countries.
| Country | Register | Year | Count | Rank |
|---|---|---|---|---|
| BE Belgium | Familienaam.be — Belgian family-name frequency (population register) | 2008 | 19K | #5 |
| BE Belgium | Statbel — Noms de famille (family names) | — | 18K | #5 |
| US United States | Census Bureau — Surname Frequency 2010 | 2010 | 4.4K | #7,597 |
| US United States | Census Bureau — Surname Frequency 2020 | 2020 | 4.1K | #7,791 |
| US United States | Census Bureau — Surname Frequency 2000 | 2000 | 4K | #7,629 |
| NL Netherlands | CBG Familienamenbank — Dutch surname bearer counts (GBA/BRP 2007) | 2007 | 3.5K | #300 |
| DE Germany | Deutscher Familiennamenatlas Band 1 | — | — | — |
| US United States | wru Name Dictionary — US surnames, Census 2010 subset (Khanna et al.) | — | — | — |
Reference works 7
- 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)
- Rymut, Słownik nazwisk współcześnie w Polsce używanych (10 vols, IJP PAN, Kraków 1992–1994) — every Polish surname in the PESEL register at the end of 1990, with bearer counts nationally and per voivodeship1990
- jeantosti.com — Dictionnaire des noms de famille de France et d'ailleurs (Jean Tosti)
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 Mertens mean, and where does it come from?
- Surname variant showing vowel alternation a~e in the atlas plate; bearer count 12390. Recorded by Deutscher Familiennamenatlas, Band 1: Graphematik/Phonologie der Familiennamen I, Vokalismus.
- In which country does Mertens have the most bearers?
- In Belgium, the national register counted about 19 thousand people named Mertens, more than in any other country we hold, where it is most often spelled mertens.
- Where is Mertens most common?
- Mertens is densest in Belgium, where the national register counts about 1 in 633 people carrying it.
- How common is the name Mertens?
- In Belgium, the national register counted 18,518 people named Mertens in 2008, about 1 in 633 residents.
- How common is Mertens compared with other names?
- In Belgium, Mertens is the 11th most common surname of 246,397 surnames recorded there.
What do you want to know about Mertens?
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/mertensThe 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, “Mertens” — the 11th most common surname in Belgium. Data snapshot 2026-10-10.