The Metropolitanate of Maishan or Maysan was an East Syriac metropolitan province of the Church of the East between the fifth and thirteenth centuries. The historical region of Maishan or Maysan (Syriac: ܡܝܫܢ) is situated in southern Iran. The metropolitans of Maishan sat at Prath d'Maishan (Syriac: ܦܪܬ ܕܡܝܫܢ), and for most of its history the province had three suffragan dioceses, at Karka d'Maishan (Syriac: ܟܪܟܐ ܕܡܝܫܢ), Rima (Syriac: ܪܝܡܐ) and Nahargur (Syriac: ܢܗܪܓܘܪ). The last metropolitan of Maishan, the noted East Syriac author Shlemun (Solomon) of Basra, is attested in 1222, and it is not clear when the province ceased to exist.[1]