Kadar (), also written in scholarly literature as Kada, Kadan and Kadir, is a Dravidian language of Kerala and Tamil Nadu that is closely related to Malayalam. It is spoken by the Kadar people.
Scholars have placed Kadar, in the classification of the Dravidian languages, close to Malayalam, with some viewing it as an independent language and others as a dialect of Malayalam.
The language is critically endangered and at risk of disappearing forever due to speakers shifting to regional languages such as Tamil or Malayalam.