Addai Scher (Syriac: ܐܕܝ ܫܝܪ, ) Also written Addai Sher, Addaï Scher and Addai Sheir (3 March 1867 – 21 June 1915), was the Chaldean Catholic archbishop of Siirt in Upper Mesopotamia. He was killed by the Ottomans during the 1915 Assyrian Genocide.
