Menas or Mennas or Minas or Mina, a Christian saint was appointed by the Byzantine emperor Justinian I as Patriarch of Constantinople in 536. Pope Agapetus I consecrated him to succeed Bishop Anthimus, who was a monophysite. He took a position against Origen. He was excommunicated in 547 and in 551 for taking a positions counter to that held by the Pope; but in both cases the sentence of excommunication was quickly lifted. The Patriarchy of Minas represents the greatest extent of papal influence in Constantinople.
His feast day in both the Eastern Orthodox and Roman Catholic Churches is observed on August 25.