Benjamin ben Immanuel Musaphia (c. 1606 – 1675), also called Benjamin Musaphia or Mussafia and Dionysius, was a Jewish doctor, scholar and kabbalist.
Musaphia was probably born in Spain. He married Sara Abigail da Silva, daughter of Semuel da Silva, in 1628. Their sons and grandsons joined the court of the Gottorps, and a daughter was married to Gabriel Milan, who would later be appointed governor of the Danish West-Indies (now U.S. Virgin Islands). Around this time, Musaphia graduated from the Padua medical school, which was regarded as the best of its kind at the time.
After Sara's death on August 7, 1634, Musaphia dedicated Zekher Rav, an adaptation of the creation myth in which all Hebrew roots are used exactly once, to her. It was first published in Amsterdam, Netherlands, in 1635, and a second edition with a Latin translation was published in Hamburg in 1638.
Another work was published in 1640, namely Sacro-Medicæ Sententiæ ex Bibliis, a medical treatise containing about 800 sentences on medicine. It contained a section on alchemy that created some stirring at the time. Musaphia also dedicated a work on ebb and flow to Christian IV of Denmark in 1642.
Around 1648, probably in connection with the death of Christian IV, Musaphia went to Amsterdam and joined the college of rabbis. In 1655, he published an extended version of Nathan ben Jehiels Talmudic dictionary Aruk (ca. 1100), titled Musaf he-'Aruk, detailing many Jewish customs. The preface states that he had been collecting this information since a young boy. Musaphia was also working on a revised version of the Talmud, which was nevertheless never published, and the manuscripts have since been lost.
His brother Albert Dionis was one of the wealthiest Jews in Hamburg in 1614.
Musaphia died in 1675, in Amsterdam.
- H. C. Terslin, Guvernør over Dansk Vestindien Gabriel Milan og hans Efterkommere (Helsingør, 1926)
- Hauch-Fausbøll, Jødernes Færden og Ophold i den Danske State i 17. Aarh. (Tidsskrift for Jødisk Historie og Literratur II)
- Meyer Kayserling, Jødernes Historie
- J. Margolinsky, Benjamin Musaphia (Tidsskrift for Jødisk Historie og Literratur III)
- Terslin, Milan, 9