Maysun
Yes. Maysun (ميسون) is attested in classical Arabic onomastic sources and literature and is formed and used as an Arabic feminine given name.
The name conveys the notion of a beautiful or graceful face and elegant bearing; its use in Arabic tradition emphasizes physical attractiveness in a literary sense.
No. Maysun does not appear in the Quran. It is attested in classical Arabic naming and literary tradition rather than in Qur'anic text.
The name appears in classical Arabic literature and naming lists; it is historically attested though not borne by widely famous figures commonly cited in later popular histories.
Maysun is relatively rare in contemporary usage and is often selected by families seeking a classical Arabic name with poetic resonance.