Record Atlas
Belgium · France · South Africa

De Kock

De Kock. Attested in Belgium, France, South Africa, borne by about 597 people in the registers this map holds.

The same name, spelt two ways

One systematic substitution — s for z, w for v, ch for h — where BOTH spellings are independently attested surnames. Kosina and Kozina are one man in two clerks' handwriting. Stronger than sounding alike, weaker than somebody having checked.

De Kok

Only sounds alike

An algorithm's guess. Useful for casting a net, and not evidence.

DekockDekok

Where it came from

No place of this name is in the gazetteer, so this map says nothing about where the name came from. Search a surname anywhere else and you will be told an origin — that it is Latin, or Italian, or means «joyful». That is etymology, it is usually unsourced, and it is a different question from the one answered here.

Where it is borne, and where a record names it

Attested in 3 countries: Belgium, France, South AfricaSouth Africa — attested, not countedFrance — 38 peopleBelgium — 559 people
A dot is a country, not a place. It sits at the country's centre because a national register counts a country; nothing here says where in it these people are. A hollow ring is attested but not counted — Denmark publishes which surnames exist and not how many carry each, and a family archive finds a name without counting heads. Sizing those by a number nobody published would invent it. Blank is not absence. This draws the 3 countries where the eleven registers and eight archives behind this atlas attest the name. Most of the world has no surname register this project can read, and the ones that do and will not are listed with the reason.
Belgium, by commune. 573 people in 48 of Belgium's 565 communes, counted by Statbel. The biggest is Antwerpen with 63. This is the only country here that can be drawn this way — every other register counts a country and stops, so a blank elsewhere is a gap in what states publish, not in the name.
48 places drawn, the largest being Antwerpen, Aalst, Gent, Overijse, Denderleeuw, Assenede, Mechelen, Affligem, Haaltert, Scherpenheuvel-ZichemZelzate — 6Geraardsbergen — 6Kasterlee — 6Berlaar — 6Schelle — 6Rumst — 6Kapellen — 6Ieper — 7Brugge — 7Kortenberg — 7Vilvoorde — 7Kapelle-op-den-Bos — 7Westerlo — 7Hoogstraten — 7Bornem — 7Niel — 7Asse — 8Puurs-Sint-Amands — 8Antwerpen — 8Beveren-Kruibeke-Zwijndrecht — 9Lebbeke — 9Zemst — 9Heist-op-den-Berg — 9Ninove — 11Aarschot — 11Liedekerke — 12Herselt — 12Ternat — 13Ranst — 13Willebroek — 15Scherpenheuvel-Zichem — 16Haaltert — 17Affligem — 17Mechelen — 20Assenede — 21Denderleeuw — 21Overijse — 26Gent — 34Aalst — 45Antwerpen — 63

Country by country

Each country below can carry up to three different kinds of evidence, and none of them is the same claim. A register is a head-count — a state counted these people. A record is one document naming the surname on that ground, narrower evidence and often much older. And a volume overlapping these dates is a document from the right place and years — never a document known to name this surname. None of the three ever means the name exists in that country and nowhere else, or that it exists nowhere but here.

Belgium

559 Borne — a state counted them — Family names by municipality, 1 January 2026 (Statbel, TA_POP_LST_2026).

Whose archive to write to

12 of 24,426 volumes held for Belgium overlap the 1970s — the decades De Kock is attested here. None is known to name De Kock: a volume overlapping these years is a document from the right place and time, not a confirmed match. Worth an afternoon.

France

38 Borne — a state counted them — Fichier des noms de famille 1891–2000 (INSEE, fichier national).

Whose archive to write to

314 of 1,513 volumes held for France overlap the 1790s, 1810s and 1940s — the decades De Kock is attested here. Too many to list, and this atlas does not know whether any one of them names De Kock. The commonest kinds: Church and parish registers, Civil registration and vital records, Censuses and population lists. See everything this atlas holds for France →

South Africa

Found in a record — Booyzen.

Whose archive to write to

2,972 of 5,287 volumes held for South Africa overlap the 1900s, 1940s and 1950s — the decades De Kock is attested here. Too many to list, and this atlas does not know whether any one of them names De Kock. The commonest kinds: Church and parish registers, Civil registration and vital records, Probate, land and notarial, Cemeteries and burials. See everything this atlas holds for South Africa →

When it was being born, in France

INSEE counts births by surname and decade from the état civil, 1891 to 2000 — the only dated evidence in this dataset. A name that starts at zero and climbs arrived; a name that falls to nothing left, died out, or emigrated, and the decade it stops is the decade to stop searching. It counts births registered in France, so a family that emigrated in 1900 simply stops appearing, which is information rather than a defect.

  • 1891–1900 4
  • 1901–1910 3
  • 1911–1920 3
  • 1921–1930 —
  • 1931–1940 5
  • 1941–1950 5
  • 1951–1960 2
  • 1961–1970 7
  • 1971–1980 1
  • 1981–1990 5
  • 1991–2000 3

Whose archive held that ground, and when

Every surname site can tell you a name is common somewhere. This one also knows which filing system held that ground in which years — and those are the two halves of one question: my people were called this, they were there, so who has the paper, and for which century. A name in Croatia before 1881 may sit in a military series and not a county one; a name in the Netherlands before 1811 has no civil record at all, only a baptism.

This is about the ground, not about your family. A register counting a name in a country says nothing about which village. And these are the pieces of a country this atlas has drawn, which in a large one may be a corner of it — Acadia reaches into Maine and is not a statement about the United States, and Bohemia's ground crosses into Poland. Each region's own page says which ground it covers. Where a country is missing below, nothing covers it yet.

Belgium
France
South Africa
  • The eastern Cape 6 eras Dutch East India Company → First British occupation → Batavian Republic → Cape Colony → …

Find De Kock on the map →

The surname dataset · CC0, and downloadable