Ponni

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