Ahmad ibn Ishaq Ash'ari Qomi (Persian: احمد بن اسحاق اشعری قمی, died between 874 and 877 CE) was one of the most trusted hadith narrators of the Shiites. He met the last four Shiite Imams (Muhammad al-Jawad, Ali al-Hadi, Hasan al-Askari and Muhammad al-Mahdi) and was one of their companions and the agent of the 11th Shiite Imam. His tomb is located in Sarpol-e Zahab, Kermanshah Province, Iran. The international congress in his honor was held in March 2011 and while issuing his stamp, the reconstruction of his tomb began.