The Selucian League (Selucian: Foedus Selucianum) was a confederation of Selucian city states during Classical Antiquity. The League was formed during the Selucian-Cildanian Wars in order to provide a unified defence of Selucia against the Qedarite Empire. The Selucian League continued to exist until it was conquered by Qedar and the Selucian archipelago became the Cildanian province of Selucia.