Dhul-Nun
Dhu'l-Nun al-Misri was an early Egyptian ascetic and Sufi figure known from classical biographical and hagiographical sources as an influential teacher in early Islamic mysticism.
No. The Quran does not use the epithet 'Dhul-Nun'; the Quranic figure associated with a fish is Prophet Yunus (Jonah), whose name appears directly in the text.
It is uncommon as a modern personal name and more typically encountered as a historical laqab or in literary and devotional contexts.
The fish motif and the laqab suggest themes of deliverance, trial and spiritual transformation in the hagiographical framing surrounding Dhu'l-Nun and related stories.
In Arabic: ذو النون ; in Urdu: ذو النون or ذوالنون.