Surname Welis (Welis 
) , globally, is a rare cognomen. The family name Welis is habitual in Belgium, where it is a very rare surname, Indonesia, and Malaysia. In absolute terms, it most frequently occurs in Indonesia, the United States, and India. Also, Welis is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Welis | Indonesia, Malaysia, United States, India, Brazil |
| gustaaf welis Belgian painter, BE (b. 1851) |
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