Wadi
Yes, the word Wadi appears in Surah At-Tawbah (9:121) and other verses describing valleys, making it a valid though rare Quranic name.
In Pashto, Wadi (وادي) retains its Arabic/Persian meaning of valley, commonly used in place names throughout the Pashtun regions of Afghanistan and Pakistan.
No, Wadi is extremely rare as a personal name, though it is one of the most common geographic terms in the Muslim world.
Wadi symbolizes potential and renewal—like a dry valley awaiting rain, it represents the soul waiting for divine guidance and mercy to flourish.
While grammatically masculine in Arabic, Wadi is occasionally used as a unisex nature name in South Asian communities, though traditionally given to boys.