Agni Natchathiram is a 1988 Indian Tamil-language masala film written and directed by Mani Ratnam.
The film stars Prabhu, Karthik, Amala, and newcomer Nirosha in lead roles, alongside Vijayakumar, Jayachitra, Sumithra, Tara, S. N. Lakshmi, and G. Umapathy in supporting roles.
The story revolves around two half-brothers who come into conflict with each other due to their claims for legitimacy as sons of a common father.
Principal photography on Agni Natchathiram stalled for nearly a year after its filming was paused, but production resumed in late 1987 following the release of Nayakan. The film was produced by G. Venkateswaran and filmed by P. C. Sreeram, with editing handled by B. Lenin and V. T. Vijayan.
Agni Natchathiram was released on April 15, 1988, during the Tamil New Year festival of Puthandu, and became a box-office success.