Surname Graysmith (Graysmith 
) , globally, is a very rare last name. The cognomen Graysmith is habitual in New Zealand, where it is a very rare surname, the United Kingdom, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Graysmith | United Kingdom, New Zealand, United States, Canada |
| robert graysmith American writer, US (b. 1942) |
|