Martin, Bernard, Petit, Thomas: the most common French surnames are familiar to anyone who has spent time in France. They are also a lesson in how to read statistics. Rankings differ by source, by era, and by region, and a very common surname makes genealogy harder rather than easier. This guide gives the leaders, what they mean, and how to cope if you carry one.
A note on the rankings
There is no single definitive list. The French national statistics institute (INSEE) published rankings of surnames in the past, and the most recent national figures widely quoted date from the late twentieth century, so many current lists draw instead on genealogy databases. Geneanet’s five-century data put Martin first, followed by Bernard, Petit, Thomas, and Moreau. Other lists, built from different periods, rank Thomas, Robert, Richard, Durand, and Dubois among the top ten. The leaders are stable, but the exact order depends on the source.
The most common French surnames and their meanings
| Surname | Origin and meaning |
|---|---|
| Martin | From Latin Martinus, linked to the cult of Saint Martin; the most common surname in France |
| Bernard | Germanic, “bear” and “brave” |
| Petit | Nickname for a small person |
| Thomas | From a given name meaning “twin,” from Aramaic through Greek |
| Moreau | Nickname for a dark-complexioned person |
| Robert | Germanic, “fame” and “bright” |
| Richard | Germanic, “power” and “hard” |
| Durand | From a medieval given name meaning “enduring” |
| Dubois | “Of the wood,” a residence name |
| Lefebvre | “The smith,” from Latin faber; leads the Nord |
| Simon, Laurent, Michel | Personal names of Hebrew, Latin, and biblical origin |
| Garcia | A Spanish name that entered the top rankings through twentieth-century immigration |
For the full range of meanings, see our guide to French surname meanings.
Concentration: a few names, many people
French surnames are strikingly concentrated at the top and strikingly rare at the bottom. According to Geneanet figures reported in the regional press, half of French surnames are carried by fewer than ten people, 5 percent of surnames cover 80 percent of the population, and about 1,000 names account for a quarter of the population. France has more than a million different surnames, so the long tail is vast.
The regional picture
The national top ten hides sharp regional differences. Martin is first nationally, but only about seventeenth in the Rhône, where Besson leads. Lefebvre tops the Nord, Bernard leads the Gironde, and Petit leads the Marne. In other words, the “most common” surname depends on where you look. See our guide to regional surnames.
Researching a very common surname
A common name is both a convenience and a trap. There are many people with the same name, so a surname alone proves nothing. To research Martin, Bernard, or Petit successfully:
- Start from the commune. Combine the name with a place and a date. See our guide to finding the commune of origin.
- Use the whole family. Confirm identity through spouses, parents, godparents, and witnesses, not through the name.
- Beware duplicate names. Two men named Jean Martin in the same parish are common, so separate them by dates and wives.
- Do not trust online trees that link a common name to a famous bearer without records.
- Use a name index carefully. A search for a common name returns thousands of hits, so narrow by place and date on a service such as MyHeritage. See our comparison guide.
Is a common surname a clue to DNA?
No. Sharing a very common surname with someone says almost nothing about being related, because unrelated families acquired the name independently. For DNA research, see our DNA guide for French ancestry.
What if my surname is rare?
A rare surname is a gift to the researcher. Because half of French surnames are carried by fewer than ten people, a rare name often traces to a single commune and a single founding family. Check variants, since a rare name may be a regional or misspelled form of a more common one.
Illustrative composite (not a real family): A family named Martin in Oregon despairs of ever finding their line among thousands of Martins. Once they identify the commune from a naturalization paper and add the wife’s maiden name and the godparents, the right Jean Martin stands out from the others.
For the full context, return to our complete guide to French surname origins.
Why different lists disagree
- Different periods. A ranking of births in the twentieth century differs from one covering five centuries.
- Merged or separate variants. Some lists count Lefebvre and Lefèvre together, and others count them separately, which changes the order.
- Different data. Civil registration, tax records, telephone directories, and genealogy databases each capture different people.
- Different geographies. A list for metropolitan France differs from one that includes overseas départements.
Reading ranking tables skeptically
When you see a “top 100 French surnames” list, ask where the data came from, which period it covers, and whether variants are merged. Meanings attached to each name are also usually simplified. Treat any ranking as an indication of scale, not a precise count. The FamilySearch Research Wiki on France and national statistics bodies are better sources than blog lists.
What the top names tell us about the Middle Ages
Look at the leaders and a pattern appears. Martin, Bernard, Thomas, Robert, and Richard all began as given names, Petit and Moreau as nicknames, and Dubois as a place name. Occupational names such as Lefebvre, the smith, rank high mainly in particular regions. In other words, the commonest French surnames are mostly the commonest medieval first names, which is why so many unrelated families share them and why a common surname says so little about a family’s origin.
Common surnames and your family tree
A common surname has one advantage: it is easy to find records with the name. It has one big disadvantage: any record could belong to many different families. Always start from a commune and a date, as in our guide to tracing French ancestry, and use the family around the person to confirm identity. Our guide to French surname origins puts the whole picture together.
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