Dunja
No. Dunja is Bosnian (South Slavic) for 'quince' and is not a Qur'anic name. It is, however, used by Bosniak Muslim families.
In Bosnian the usual pronunciation is DOON-ya (ˈdun.ja), with 'j' pronounced like English 'y'.
Not intrinsically; the name is cultural and nature-based. It does not appear in the Qur'an or canonical Hadith, though individuals with this name are part of Muslim communities.
In Bosnian-speaking contexts diminutives can include 'Dunjica' or simply 'Dun' used informally; usage varies by family and region.
Dunja is primarily a Bosnian/Western Balkans name; it occurs occasionally in diaspora communities but is far less common in Arabic-speaking countries.