Last name Nilis (Nilis 
) , across the world, is a rare cognomen. The surname Nilis is habitual in Belgium, where it is a rare surname, Honduras, where it is a very rare surname, and Venezuela. In absolute terms, it most frequently occurs in Belgium, Indonesia, and India. Likewise, Nilis is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Nilis | Brazil, Indonesia, Belgium, Colombia, India |
| théodore nilis (b. 1851) |
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| roger nilis Belgian association football player (1938-2011), BE (b. 1938) |
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| luc nilis Belgian association football player, BE (b. 1967) |
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| ella nilis Belgian dancer, BE |
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| arne nilis Belgian association football player, BE (b. 1991) |
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