Phasis was an ancient and early medieval city on the eastern Black Sea coast, near modern Poti in Georgia.
After the introduction of Christianity Phasis was the see of a Greek diocese one of whose bishops, Cyrus, became a Patriarch of Alexandria between AD 630 and 641.
[1][2] In 1929, the diocese was nominally restored as a Latin titular archbishopric of the highest (Metropolitan) rank.
It is vacant since decades, having had the following archiepiscopal incumbents:[3]