Cognomen Wetherhill (Wetherhill 
) , all over the world, is a very rare family name. The surname Wetherhill is characteristic of Bermuda, where it is quite a common surname, the United Kingdom, where it is a very rare surname, and New Zealand. Measured by absolute frequency, it is the most numerous in the United Kingdom, Bermuda, and the United States.
| VARIANT | COUNTRY |
|---|---|
| Wetherhill | United States, Bermuda, United Kingdom, New Zealand |