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Worldwide, Willamson (Willamson
) is a very rare epicene forename. The first name Willamson is habitual in Sub-Saharan Africa, particularly Nigeria, where it is a very rare unisex name. More frequently, Willamson is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Willamson | Australia, United Kingdom, United States, Nigeria, Canada |