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Family name Silverthorne (Silverthorne
) , globally, is quite a rare last name. The surname Silverthorne is habitual in Canada, where it is a rare surname, the United Kingdom, and Australia. Not in comparison with a country's population, the name is most common in the United States, the United Kingdom, and Canada.
| VARIANT | COUNTRY |
|---|---|
| Silverthorne | Canada, Australia, United States, United Kingdom, South Africa |