Ghaus
No. Ghaus is an Arabic word used as a Sufi title and honorific, not a personal name appearing as a proper noun in the Qur'an.
In Sufi contexts it signifies a spiritual helper or succor — a saintly figure believed to grant spiritual assistance.
Yes. The term entered Persian and was adopted in South Asian Sufi circles, especially in Sindhi and Bengali devotional traditions.
Locally it is often pronounced /ɡaʊs/ or /ɡhaʊs/, simplifying the classical Arabic consonant.
It can be used, especially within families with Sufi devotional affiliations, but it remains uncommon as a standalone given name.