The Rhodes blood libel was an 1840 event of blood libel against Jews, in which the Greek Orthodox community accused Jews on the island of Rhodes (then part of the Ottoman Empire) of the ritual murder of a Christian boy who disappeared in February of that year.
Initially the libel garnered support from the consuls of several European countries, including the United Kingdom, France, the Austrian Empire, Sweden, and Greece, although later several supported the Jewish community. The Ottoman governor of Rhodes broke with the long tradition of the Ottoman governments (which had previously denied the factual basis of the blood libel accusations) and supported the ritual murder charge. The government arrested several Jewish subjects, some of whom were tortured and confessed. It blockaded the entire Jewish quarter for twelve days.
The Jewish community of Rhodes appealed for help from the Jewish community in Constantinople, who forwarded the appeal to European governments. In the United Kingdom and Austria, Jewish communities gained support from their governments. They sent official dispatches to the ambassadors in Constantinople unequivocally condemning the blood libel. A consensus developed that the charge was false. The governor of Rhodes sent the case to the central government, which initiated a formal inquiry into the affair. In July 1840, that investigation established the innocence of the Jewish community. Finally, in November of the same year, the Ottoman sultan issued a decree (firman) denouncing the blood libel as false.