Dausara is a former residential episcopal see in the Roman province of Osrhoene, a suffragan of Edessa.
[1] Stephanus Byzantius mentions Dansara as a town near Edessa (Orfa), and Procopius says it was one of the castles around Theodosiopolis, which were fortified by Justinian.
[1] The see appears in the Notitia episcopatuum of the Patriarch of Antioch.
Its bishop Nonnus was present at the Second Council of Constantinople in 553.
[2] The Holy See uses the spelling "Dausara", as it did already for the appointment in 1783 of Daniel Delany (who was to become Bishop of Kildare and Leighlin in 1787) as the first titular bishop.