The Assyrian Church of the East (Classical Syriac: ܥܕܬܐ ܕܡܕܢܚܐ ܕܐܬܘܖ̈ܝܐ ʻIttā d-Madnĕkhā d-Āturāyē), officially the Holy Apostolic Catholic Assyrian Church of the East (Classical Syriac: ܥܕܬܐ ܩܕܝܫܬܐ ܘܫܠܝܚܝܬܐ ܩܬܘܠܝܩܝ ܕܡܕܢܚܐ ܕܐܬܘܖ̈ܝܐ, ʻIttā Qaddishtā w-Shlikhāitā Qattoliqi d-Madnĕkhā d-Āturāyē), is a Syriac Church historically centered in Assyria, northern Mesopotamia. It is one of the churches that claim continuity with the historical Patriarchate of Seleucia-Ctesiphon – the Church of the East.