Abū al-Fatḥ Maḥmūd ibn al-Ḥusayn ibn al-Sindī ibn Shāhak, better known as Kushajim was a 10th-century polymath associated with the Hamdanid courts in Mosul and Aleppo.
Kushajim was originally from a family from al-Sind; his grandfather al-Sindi was a notable Abbasid official during the reign of Harun al-Rashid. Kushajim was born at Ramla in Palestine, and initially lived at the court of Abdallah ibn Hamdan in Mosul, later joining that of Sayf al-Dawla in Aleppo. He also made visits to Baghdad, Egypt and Damascus. His son-in-law was al-Sanawbari. He died in 961.
Kushajim was a master of a number of crafts: his chosen name Kushajim (کشاجم) was said to be created from initials of skills he excelled in (katib, sha'ir, adib, jawad, and mantiq). He wrote a number of works, including: