Abu Hasan Ali ibn Umar ibn Ahmad ibn Mahdi al-Daraqutni (Arabic: أبو الحسن علي بن عمر بن أحمد بن مهدي الدارقطني, romanized: Abū ‘l-Ḥasan ‘Alī ibn ‘Umar ad-Dāraquṭnī, 918 CE — 995 CE) was a 10th-century muhaddith best known for compiling the hadith collection Sunan al-Daraqutni. He was celebrated later by Sunni hadith scholars such as the "imam of his time" and the "amir al-mu'minin in hadith".