Ponni may refer to: Ponni, another name for the Kaveri River in southern India Ponni rice, a variety of rice cultivated in India Ponni (novel), a 1967 Malayalam-language novel by Indian writer Malayattoor Ponni (1976 film), an Indian film by Thoppil Bhasi, based on the novel Ponni (1953 film), an Indian Tamil-language film Ponni (TV series), an Indian Tamil-language serial Põnni, a village in Võru County, Estonia
See also Ponniyin Selvan (disambiguation), literally "son of Ponni River", an Indian media franchise Kaveri (disambiguation)