Vypin is one of the group of islands that form part of the city of Kochi (Cochin), in the Indian state of Kerala. Vypin forms a barrier island which lies between the Arabian Sea in the west and the Cochin backwaters formed by the various distributaries of Periyar river, in the east. The northernmost end of the island lies on the estuary of the Periyar river in Muziris (Kodungallur), and the southernmost end in the mouth of the Cochin Backwaters in Kalamukku near Fort Vypin.