Cognomen Silverthorn (Silverthorn 
) , in all the world, is quite a rare family name. The surname Silverthorn is habitual in Canada, where it is a rare surname, the United States, and New Zealand. Measured by absolute frequency, it is commonest in the United States, Canada, and the United Kingdom.
| VARIANT | COUNTRY |
|---|---|
| Silverthorn | United Kingdom, United States, Canada, France, New Zealand |
|
merwin h. silverthorn Recipient of the Purple Heart medal, US (b. 1896) |
|
|
steve silverthorn Canadian ice hockey player, CA (b. 1981) |
|
| dee unglaub silverthorn medical educator (b. 1948) |
|
|
| jason silverthorn Canadian ice hockey forward, CA (b. 1979) |
|
|
| dee u silverthorn researcher |
|