From Wiktionary, the free dictionary
First recorded in 1859. From vilnis (“wave”).
Vilnis m
- a male given name
- Klāvs Siliņš: Latviesu personvārdu vārdnīca. Riga "Zinātne" 1990, →ISBN
- [1] Population Register of Latvia: Vilnis was the only given name of 4140 persons in Latvia on May 21st 2010.