The Buyck surname
In the 2010 U.S. Census, 309 people carried this name — #64,388 among all U.S. surnames, about 1 in every 1,000,000 people counted. That is up 3% from 300 in 2000.
In Belgium’s population register
At least 766 people named Buyck live in Belgium.
Statbel only publishes a name in a municipality when five or more people there share it, so the real number is higher. Most of them live in West Flanders.
Where it concentrates, on the mapWhere they live today
Statbel (Statistics Belgium), family names of the population by municipality, 1 January 2026 — CC BY 4.0.
In France’s civil register
France’s register of deaths holds 140 people named Buyck.
17 of them were born outside France. Those born in France came from 11 départements, most often Nord.
Too few records to say where it concentrates region by region — these are plain counts, not shares.
Where they were born
Fichier des personnes décédées, INSEE — Licence Ouverte 2.0 · deaths recorded in France since 1970, by place of birth.
Nearby in the index
Surnames next to Buyck.
When the index is not enough
This page says where Buyck is.
A volume says what happened to it.
Every page in the index is free and stays free. The Heritage Volume is the long form: the full paper trail, the arms, the crossing — bound, and yours.