Abū ‘Ubayd al-Jūzjānī;
(d.1070), (ابو عبيد جوزجانی) was a Persian physician and chronicler from what is now Jowzjan Province in Afghanistan.
He was the famous pupil of Avicenna, whom he first met in Gorgan. He spent many years with his master in Isfahan, becoming his lifetime companion. After Avicenna’s death, he completed Avicenna’s Autobiography with a concluding section.