Church of Saint Demetrius or St. Demetrius' Church may refer to:

Albania St. Demetrius' Church, Boboshticë (Kisha e Shën Mitrit, Boboshticë) St. Demetrius' Church, Drobonik (Kisha e Shën Mitrit, Debranik) St. Demetrius' Church, Poliçan (Kisha e Shën Mitrit, Poliçan) St. Demetrius' Monastery Church, Qeparo (Kisha e Manastirit të Shën Mitrit, Qeparo)

St. Demetrius' Church, Tuminec (Kisha e Shën Mitrit, Bezmisht) Bulgaria Church of St Demetrius, Boboshevo Church of St Demetrius, Patalenitsa Church of St Demetrius of Thessaloniki, Veliko Tarnovo

Romania Cathedral of Saint Demetrius, Craiova Saint Demetrius Church, Focșani

Others Hagios Demetrios, a World Heritage Site in Thessaloniki, Greece Church of Saint Demetrius, Budapest, Hungary Church of Saint Demetrius in Kosovska Mitrovica, Kosovo St Demetrius Chapel, Għarb, Malta Cathedral of Saint Demetrius, Vladimir, Russia Cathedral Church of St Andrew and St Demetrius, Madrid, Spain St. Demetrios Greek Orthodox Church (Seattle), United States Church of Saint Demetrius, Constantinopel, destroyed orthodox church in Constantinopel