Sthanu Ravi Varma ( Malayalam and Tamil: Ko Tanu Iravi), known as the Kulasekhara, was the Chera Perumal ruler of Kerala in southern India from 844/45 to 870/71 AD. He is the earliest Chera Perumal ruler known to scholars. Sthanu Ravi probably abdicated the throne toward the end of his reign and became a Vaishnavite alvar saint known as Kulasekhara Alvar (seventh of the twelve mystic alvars). He is also identified with playwright Chera king Kulasekhara Varma.