Rudabeh
Rudabeh is not from the Qur'an or Hadith; it is a Persian literary name from Ferdowsi's Shahnameh that has been used historically by Persian-speaking Muslim communities.
Linguistically it combines Persian rūd (river) + āb/ābeh (water), so it is commonly rendered as 'river-water' or 'she of the river.'
In the Shahnameh, Rudabeh is the daughter of Mehrab, wife of the warrior Zal, and mother of Rostam — a central figure in Persian epic genealogy.
No; Rudabeh is considered rare in contemporary naming, mostly chosen by families valuing classical Persian literature and heritage.
Rudabeh is specifically feminine; there is no direct masculine form, though related poetic names and place-based names share the root rūd (river).