All over the world, Gilfillan (Gilfillan 
) is a very rare male first name. The given name Gilfillan is characteristic of Eastern Asia, particularly China, where it is an extremely rare masculine name. Predominantly, Gilfillan is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Gilfillan | United Kingdom, Australia, United States, South Africa, Canada |
| merrill gilfillan American writer, US (b. 1945) |
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| ross mounsey gilfillan (born 1974), GB (b. 1974) |
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