Abū ‘Amr Isḥaq ibn Mirār al-Shaybānī (d. 206/821, or 210/825, or 213/828, or 216/831) was a famous lexicographer-encyclopedist and collector-transmitter of Arabic poetry of the of philology. A native of Ramādat al-Kūfah, who lived in Baghdad, he was a mawla (client) under the protection of the Banū Shaybān, hence his nisba. Descended from an Iranian landowner (dihqān) on his paternal side, his mother was a Nabaṭī and he reportedly knew a little of the Nabataean language. The biographers al-Nadīm and Ibn Khallikān quote a claim by 's that he lived to the age of one hundred and eighteen and wrote in his own hand up to his death, in 213/828. However this is disputed by a claim that he died in 206/821 aged one hundred and ten, and this latter is deemed credible.