Cognomen Thoroddsson (Thoroddsson 
) , across the world, is a very rare last name. The cognomen Thoroddsson is characteristic of Iceland, where it is quite a rare surname, Norway, where it is a very rare surname, and Australia. In absolute terms, it most frequently occurs in Iceland, Australia, and the United States.
| VARIANT | COUNTRY |
|---|---|
| Thoroddsson | Norway, Germany, Iceland, Australia, United States |
| sverrir thoroddsson icelandic racing driver (b. 1944) |
|