Throughout the world, Willmon (Willmon 
) is a very rare masculine given name. The forename Willmon is habitual in South Africa, where it is a very rare boy's name, and the United States, where it is a very rare principally male, but very infrequently feminine name. More frequently, Willmon is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Willmon | Spain, Canada, South Africa, Nigeria, United States |