Bettina

Also Romansh:
Source: "Vornamen in der Schweiz. Prénoms en Suisse. I nomi in Svizzera. Prenoms in Svizra" (1993) published by the Association of Swiss registrars
https://nossaistorgia.ch/entries/873ZL2joDAO
https://nossaistorgia.ch/entries/EjnD042lDBg
https://www.portraitarchiv.ch/portrait?page=170

Also Hungarian: https://hu.wikipedia.org/wiki/Bettina
http://www.nytud.hu/oszt/nyelvmuvelo/utonevek/osszesnoi.pdf
https://en.wikipedia.org/wiki/Bettina_Dajka. [noted -ed]

Also used in Italy as a diminutive of Elisabetta. [noted -ed]

Also a Hungarian name. Pronounced: BET-ti-naw.

This is a top 1000 name in The Netherlands. It was used most in the late '60s and early '70s, after which its popularity steadily decreased.

This name is also used in The Netherlands, where it is pronounced as bet-TEE-nah.