Shaykh Abul Qasim Gurgani (990/380–1058/450 AH) (Persian:ابو القاسم گرگانی)[1] was an Iranian Sufi of Kubruwia Sufi tariqah as well as other Sufi orders. Shaykh Gurgani authored a book titled "Fusūl al-Tarīqah wa Fusūl al-Haqīqah".[2] His grave is located in a small village, three kilometers south of Torbat Ḥeydarīyeh in Iran.