Paisius I of Constantinople (Greek: Παΐσιος; died c. 1688) was a two-time Ecumenical Patriarch of Constantinople (July 1652 – April 1653 and March 1654 – March 1655).
He was previously Bishop of Ephesus and Larissa.
[1] Paisius was born at the turn of the seventeenth century but the exact date of his birth is not known.
After his second deposition, he established residence on the island of Halki, having received eis zoarkeian (that is, without pastoral obligations) the Metropolis of Ephesus and Cyzicus.
The date and place of his death is not known, but he likely died at Halki in the late seventeenth century.