Cognomen Tørnkvist (Tørnkvist 
) , all over the world, is an extremely rare surname. The family name Tørnkvist is characteristic of Northern Europe, particularly Denmark, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Tørnkvist | Denmark |
| arne hygen tørnkvist Norwegian businessman (b. 1965) |
|