Fausta

Also Portuguese:

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https://www.behindthename.com/name/fausta/top/brazil
https://pt.m.wiktionary.org/wiki/Fausta

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://sursassiala.ch/2015/01/15/familienforschung/
https://www.portraitarchiv.ch/portrait?page=114

Fausta is also Lithuanian and Polish. The name day for Fausta in Lithuania is September 20. The name day for Fausta in Poland is September 20.

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Sources: https://pl.m.wikipedia.org/wiki/Fausta
https://forebears.io/forenames/fausta

Also Polish: https://pl.wikipedia.org/wiki/Fausta

Fausta has also seen use in Russia, where it is considered a variant form or spelling of Favsta (Фавста). In Russian, Fausta is spelled as: Фауста.

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- http://kurufin.ru/html/Translate/Faust.html (in Russian)
- http://kurufin.ru/html/Rus_names/rus_f.html (in Russian)
- https://ru.wikipedia.org/wiki/%D0%A4%D0%B0%D0%B2%D1%81%D1%82 (in Russian)
- https://ru.wikipedia.org/wiki/%D0%A4%D0%B0%D0%B2%D1%81%D1%82%D0%B0 (in Russian)
- http://heraldry.sca.org/names/paul/e-f.html (in English; see the entry for Fausta).