Aḥmad ibn 'Umar al-Dhakī al-Mawṣilī was a 13th-century metalworker from Mosul, now in Iraq.[1] He is known from three surviving works over a period of about 20 years from 1223 to 1242–43.[1]: 286–7 He operated an atelier (workshop) with his ghulam Abu Bakr Umar ibn Hajji Jaldak (probably not a slave but more of an assistant).[1]: 286, 317 The epithet "al-Dhaki" means "the sagacious".[1]: 311