Norbert

Also Czech:

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https://en.m.wiktionary.org/wiki/Norbert#Czech
https://cs.m.wiktionary.org/wiki/Norbert
https://www.behindthename.com/name/norbert/top/czech

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/w4LMYKw8V2l
https://www.portraitarchiv.ch/portrait?page=69

Also Provençal: https://ieo-oc.org/spip.php?page=article&id_article=290 --- Source: Institut d'Estudis Occitans

Also Slovak: https://sk.wikipedia.org/wiki/Norbert_(prv%C3%A9_meno)
https://en.wiktionary.org/wiki/Norbert#Slovak [noted -ed]

Also Czech: https://cs.wikipedia.org/wiki/Norbert

With 48 625 bearers, Norbert is the 30th most common masculine name in Hungary. (01/01/2016).