S. Mohammad Mozaffari is an Iranian historian of medieval astronomy currently serving at the Research Institute for Astronomy and Astrophysics of Marāgha (RIAAM), University of Maragheh, in Iran. He is also a research associate in the project of the Ptolemaeus Arabus et Latinus (Bavarian Academy of Sciences and Humanities, Munich). His primary research focus lies in the growth and development of observational astronomy, particularly its interplay with theoretical astronomy, during the medieval Islamic period. He is an active member of the International Astronomical Union and holds editorial roles as an advisory editor for the Journal for the History of Astronomy, an associate editor for SCIAMVS (Sources and Commentaries in the Exact Sciences), and an associate editor for the Journal of Astronomical History and Heritage.