:''not to be confused with the Council of Seleucia-Ctesiphon of 410.''
The '''Council of Seleucia''' was a local [[synod|council]] of the Christian church held in the fourth century at Seleucia Isauria in southern Asia Minor (now Silifke, Turkey).
In 358, the Roman Emperor [[Constantius II]] requested two councils, one of western [[bishop]]s at Ariminum and the other of eastern bishops at [[Nicomedia]], to resolve the controversy over [[Arianism]] regarding the nature of the divinity of [[Jesus Christ]], a controversy that had divided the fourth-century church.<ref>Philostorgius, in Photius, ''Epitome of the Ecclesiastical History of Philostorgius'', book 4, chapter 10.</ref>
Before the council was convened an earthquake struck Nicomedia, killing many people including the bishop, Cecropius of Nicomedia. As a result on [[September 27]], 359 the eastern council (of about 160 bishops) met at Seleucia instead. The council was bitterly divided, and disorganized. The two parties met separately and reached opposing decisions.<ref>Philostorgius, in Photius, ''Epitome of the Ecclesiastical History of Philostorgius'', book 4, chapter 11.</ref><ref>Socrates Scholasticus, ''Church History'', book 2, chapter 39.</ref>