Abū Muḥammad al-Ḥasan ibn ʻAbd al-Raḥmān ibn Khallād al-Rāmahurmuzī (Larabci: ابو محمد الحسن بد الرحمن بن خلاد الرامهرمزي) (?— kafin 971 CE/360 AH), wanda aka fi sani da shi a cikin littattafan tarihi kamar Ibn al-Khallād, masanin ilimin hadisi ne na Farisa kuma marubuci wanda ya rubuta ɗayan manyan littattafan farko da aka tattara a cikin littattafan adabin hadisi, al-Muḥaddith al-Fāṣil bayn al- Rāwī wa al-Wāʻī. Ba a tantance takamaiman ranar haihuwar Al-Rāmahurmuzī ba, amma ana iya kimanta shi dangane da kwanakin rasuwar malamansa, yana sanya haihuwarsa kusan shekaru 100 kafin mutuwarsa. Don haka, 871/260 kimantawa ce daidai gwargwado, a cewar The Encyclopaedia of Islam, dangane da tsawon rayuwar da galibi ake ɗauka don ƙwararrun hadisi. Sunan al-Rāmahurmuzī alama ce ga Rām-hurmuz wani gari a Khūzistān a kudu maso yammacin Iran a yau. Mahimmancin Rām -hurmuz shine tsakiyar wurinsa a tsaka tsakanin Ahwaz, Shūshtar, Iṣfahān da Fārs tsakanin Āb -i Kurdistān da kogunan Gūpāl.