Americans with one of these 42 last names may be secret Canadians
If you were born in the United States with a last name like White, King, Carpenter, or Rivers, you might be a Canadian citizen by descent.
While these names aren’t uniquely Canadian, they carry a secret—in many cases, they’re the anglicized form of French surnames — Leblanc, Roy, Charpentier, La Rivière — signalling the family’s descent from French Canadians who immigrated to the United States four or five generations ago.
More obviously French names like Tremblay, Gagnon, Côté, and Bouchard rank among Canada's most common surnames, while being comparatively rare in the United States.
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In the wake of Canada’s new citizenship law, which removed the generational limit to Canadian citizenship by descent, many Americans may find the first clue to their eligibility for Canadian citizenship sitting on their driver’s licenses.
The CIC News team has compiled 42 names that are more likely to signal Canadian ancestry.
French names in disguise
Surnames of French-Canadian immigrants were anglicized over generations of assimilation, and anglicized more frequently and more diversely than those of any other immigrant group in the United States, according to Marc Picard, a linguistics professor at Concordia University in Montreal.
Picard has documented hundreds of French-Canadian surname transformations, which can be broadly grouped into two regular patterns: direct translations (Leblanc to White) and sound adaptations (Boucher to Bushey).
Picard also discovered substitutions that appear entirely unpredictable outside the realm of specialized linguistics research: Vaillancourt became Smart. Therrien became Pease. Sirois became Luro.
Here are some common English surnames that often originate from French-Canadian surnames:
| English surname | Original French-Canadian name | How it changed |
|---|---|---|
| White | Leblanc (Canada rank #16) | Translation |
| King | Roy (Canada rank #5) | Translation — roi means king |
| Wood | Dubois | Translation — bois means wood |
| Greenwood | Boisvert | Translation |
| Rivers | La Rivière | Translation |
| Carpenter | Charpentier | Translation |
| Stone | Lapierre | Translation — pierre means stone |
| Carter | Cartier | Sound adaptation |
| Bushey | Boucher (Canada rank #42) | Sound adaptation |
| Mayhew | Mailloux | Sound adaptation |
If your surname is one of the commonly anglicized forms of French-Canadian surnames, you’re even more likely to have Canadian descendants if your family has roots in New England or the Upper Midwest.
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Uncloaked French-Canadian surnames
The third most common surname in Canada isn't Johnson or Williams. It's Tremblay.
Tremblay is the most popular French-origin surname in Canada, carried by nearly 35,000 households. In the United States, it barely registers — ranked 4,210th. If you're an American named Tremblay, you are roughly 114 times more likely to have Canadian roots than the average American surname would suggest.
That ratio — how much more common a name is in Canada compared to the US — turns out to be a powerful signal. Using Canadian telephone directory data and US Census Bureau records, we’ve compared the most frequent surnames in both countries.
The table below shows the French-Canadian surnames with the strongest Canadian signal, ranked by how disproportionately they appear in Canada compared to the United States.
| Surname | Canada rank | US rank | How much more common in Canada |
|---|---|---|---|
| Beaulieu | 58 | 3,184 | 28x |
| Bédard | 94 | 5,402 | 37x |
| Bélanger | 28 | 2,628 | 32x |
| Bouchard | 22 | 2,586 | 34x |
| Caron | 62 | 2,690 | 22x |
| Cloutier | 82 | 4,411 | 33x |
| Côté | 10 | 1,575 | 28x |
| Desjardins | 84 | 7,462 | 59x |
| Dubé | 79 | 3,845 | 29x |
| Fortin | 38 | 3,894 | 41x |
| Fournier | 66 | 2,335 | 19x |
| Gagné | 34 | 3,434 | 37x |
| Gauthier | 20 | 2,025 | 31x |
| Girard | 52 | 2,677 | 25x |
| Lapointe | 74 | 3,824 | 30x |
| Lavoie | 30 | 3,648 | 44x |
| Leblanc | 16 | 767 | 13x |
| Lefebvre | 73 | 5,354 | 43x |
| Lévesque | 31 | 2,982 | 35x |
| Martel | 91 | 3,908 | 27x |
| Morin | 25 | 1,136 | 15x |
| Ouellet | 78 | 31,884 | 368x |
| Pelletier | 29 | 1,911 | 23x |
| Poirier | 44 | 3,608 | 35x |
| Roy | 5 | 621 | 14x |
| Simard | 55 | 13,128 | 136x |
| Tremblay | 3 | 4,210 | 114x |
An American named Ouellet is 368 times more likely to have Canadian ancestry than someone with a typical American surname. Simard is 136 times. Even names that appear more frequently in the US — like Leblanc or Roy — are still 13 to 14 times more concentrated in Canada.
These numbers aren't random. They trace directly to one of the largest migrations in North American history.
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The Maritime connection
Not all Canadian migration to the US was French.
The Canadian provinces Nova Scotia, New Brunswick, and Prince Edward Island sent waves of Scottish and Irish Canadians south — particularly to New England and the Carolinas.
| Surname | Canada rank | Regional concentration |
|---|---|---|
| MacDonald / McDonald | 12 / 63 | Nova Scotia, Prince Edward Island |
| Campbell | 9 | Nova Scotia, Cape Breton |
| Fraser | 59 | Nova Scotia |
| Cameron | 86 | Maritime provinces |
| Morrison | 90 | Cape Breton, Nova Scotia |
These names are common in both the US and Canada, so they don't carry the same statistical signal as a name like Tremblay or Gagnon.
But context matters. If you're a MacDonald from Maine, a Campbell from Massachusetts, or a Fraser from the Carolinas — you could be in the same position as one in four New Englanders: Canadian by law.
How to use your surname as a starting point
A surname isn't proof that you are Canadian. But it can be an important starting point to discovering a second citizenship.
If you recognize your family name anywhere in this article, it can be useful to start with your oldest living relatives. Ask about grandparents, great-grandparents, and where the family came from. Look for French first names in older generations — Jean, Pierre, Marie, Jacques — even if the surname is now English. Check whether your family has connections to New England, upstate New York, the Upper Midwest, or Louisiana.
If your name looks English but your family has New England roots, consider whether it might be a translation. Not every White was once a Leblanc. But enough were that it's worth asking the question.
Keep in mind that if you qualify, your siblings almost certainly do too. And so would many of your cousins on that side of your family, their children, and anyone else who descends from the same ancestor. One discovery can unlock Canadian citizenship for an entire extended family.
You can check your eligibility using CanadaVisa's citizenship by descent calculator.
A name is just the beginning
Since Bill C-3 took effect, Quebec's national archives have reported a 3,000% increase in requests for vital records — most from Americans.
Many of those applicants started exactly where you might be right now: with a last name and a question.
Tremblay. Gagnon. Leblanc. Roy. White. King. Carpenter. These names cross the border every day on American driver's licenses, office nameplates, and mailboxes. Many Americans have no idea what their names might signal, not only for their heritage, but also for their citizenship status.
Your last name isn't proof of anything. But for many Americans, it's the first clue.
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