Barbaʿshmin, also called Barbasceminus, was a fourth-century bishop of Seleucia-Ctesiphon, primate of the Church of the East, and martyr. He succeeded Shahdost as bishop of Seleucia-Ctesiphon in 343, during the great persecution of Shapur II, and was martyred three years later, in 346. Like several other early bishops of Seleucia-Ctesiphon, he is included in the traditional list of patriarchs of the Church of the East, which also considers him a saint. His feast day is January 14.