Demoutsantata (Greek: Δεμουτσαντάτα, before 1940: Μοντεσαντάτα - Montesantata[2]) is a village in the municipal unit of Argostoli on the island of Kefalonia, Greece.

It is part of the community of Troianata.

It is located 1 km south of Troianata and 6 km southeast of Argostoli.