Around the world, Gwillim (Gwillim 
) is an extremely rare unknown gender given name. Much more frequently, Gwillim is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Gwillim | United Kingdom, South Africa, Australia, United States, Canada |
| calvert merton gwillim b.26 October 1899 d.2 September 1972 (b. 1899) |
|
|
| moore gwillim, of monmouth - 1611 |
|