Ecdaumava or Ekdaumaua (Greek: Έκδαύμαυα), also known as Egdava and Gdanmaa (Greek: Γδανμάα), was a town of ancient Lycaonia, inhabited in Roman and Byzantine times.^[1] It became a bishopric; no longer the seat of a residential bishop, it remains a titular see of the Roman Catholic Church.^[2]

Its site is located near Çeşmelisebil, Sarayönü, Konya Province, Turkey,^[1][3] 85 km (53 mi) north of Konya at the foot of a chain of low hills running north–south.^[4] The site is specifically on a hill east of Çeşmelisebil and was once the richest find site of Christian inscriptions in Lycaonia, but today there are relatively few remains including ancient and Byzantine spolia.^[4] There are also inscriptions at Kuyulusebil, 4 km (2.5 mi) north of Çeşmelisebil.^[4]

According to the Tabula Peutingeriana, Gdanmaa lay on the more northerly of the ancient routes crossing through Lycaonia from northwest to southeast, between Vetisso and Pegella.^[4] There may have also been a north–south route passing through the town, branching off from the main Ankyra-Ikonion road and leading to Laodicea Combusta.^[4] Gdanmaa was still described as a chorion through post-Constantine times.^[4] The First Council of Nicaea in 325 contains the first reference to Gdanmaa as a bishopric: its bishop (a suffragan of Ankyra) was listed among the participants.^[4] At the Council of Chalcedon in 451 it was listed as a suffragan of Ikonion and was represented by the metropolitan.^[4]

In later periods the bishopric is given the alternate name of Eudoxias or Eudokias, which exclusively appears in later periods.^[4] The change of name indicates that the seat of the bishopric had shifted to the better-protected location of Eudokias.^[4] Eudokias's location is unknown but it must be one of the fortified places of northern Lycaonia, perhaps at Karanlı Kale north of Yeniceoba.^[4] Eudokias was also the seat of a bandon and topoteresia, which was transferred into the new tourma of Kommata, in the theme of Cappadocia under Leon VI.^[4]