Ratnam may refer to
People Anita Ratnam, Indian dancer A.M. Ratnam, Indian film producer Kakani Venkata Ratnam, Indian politician Mani Ratnam, Indian film director Samantha Ratnam, Australian social worker and politician Suhasini Ratnam, Indian actress Raghupathi Venkataratnam Naidu, Indian social reformer Madineni Venkat Ratnam, Indian atmospheric scientist
Cinema Money Ratnam, a 2014 Indian Malayalam-language film Rangula Ratnam (disambiguation)
Other Ratnam SC, Sri Lankan football club
See also Ratna (disambiguation) Rathnam (film), an Indian Tamil-language film by Hari