Cognomen Gilmon (Gilmon 
) , around the world, is a very rare last name. The surname Gilmon is characteristic of Nigeria, where it is a very rare surname, Nicaragua, and the United States. Measured by absolute frequency, it most frequently occurs in the United States, Nigeria, and India. Likewise, Gilmon is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Gilmon | Philippines, India, Brazil, United States, Nigeria |