Manna (Greek: Μάννα, before 1927: Μάρκασι - Markasi[2]) is a village in Corinthia, southern Greece.

Under the leadership of Basili Barbitsioti they fortified under a rock at the entrance of the village and drive the Turks away many times.

During World War II the village was the only one that wasn't demolished by the Germans because the women of the village found a dead German that was killed during a battle and buried him with all the honors they buried a Greek man.

When the earthquakes of 1921 struck, two large rocks fell off the mountain 6mX4m but they stopped right before the church and did not destroy the homes of the villagers.

Another spring that resides in the village has the phenomenon of tide for 6 hours the water is released and for another 6 it is not.