Güzin
No. Güzin is Turkish in current form, derived from Persian guzīn meaning 'chosen'. It has been used by Muslim communities influenced by Ottoman/Turkish culture.
Yes. Güzin is attested among Bosnian Muslim naming repertoires due to Ottoman-era linguistic and cultural influence in the Balkans.
No direct Quranic attribution exists for the proper name Güzin; its meaning 'chosen' is a general semantic word rather than a Qur'anic proper name.
Approximate English pronunciation is GYU-zeen, where the initial sound corresponds to Turkish 'gü' (front rounded vowel).
In Turkish and Bosnian contexts short forms or affectionate diminutives such as 'Güzi' or 'Zin' are sometimes used informally, but full Güzin remains standard.