Laine

Also means Wave in Finnish, and the name is also used in Finland and Scandinavia. Both feminine and masculine, but appears the feminine is more common as a variant of the spelling Laina
https://www.nordicnames.de/wiki/Laine_f
https://www.nordicnames.de/wiki/Laine_m
https://www.nordicnames.de/wiki/Laina

---

And there is a Sami version
https://www.nordicnames.de/wiki/L%C3%A1idn%C3%A1

Also used in Latvia.

78 girls and 53 boys were given Laine in America in 2014.

Name "Laine" means wave not only in Estonian but in Finnish, too. It is more common as a surname in Finland, but used also as a first name.