Hájí Mírzá Ḥasan-i-Adíbu'l-ʻUlamá (Arabic: حج مرزا حسن أديب العلماء; September 1848–2 September 1919), known as Mírzá Ḥasan or Adíb, was an eminent follower of Baháʼu'lláh, the founder of the Baháʼí Faith. He was appointed a Hand of the Cause and identified as one of the nineteen Apostles of Baháʼu'lláh.