Retta Thala  is a 2025 Indian Tamil-language action thriller film written and directed by Kris Thirukumaran and produced by Bobby Balachandran under his BTG Universal banner. The film stars Arun Vijay in a dual role alongside Siddhi Idnani and Tanya Ravichandran. The film also includes Kannada actor Yogi Samy as an antagonist, alongside Hareesh Peradi, John Vijay, and Balaji Murugadoss in supporting roles.

The film has music composed by Sam C. S., editing handled by Llewllyn Anthony Gonsalvez, and cinematography by Tijo Tomy. The film was officially announced on 4 April with the working title AV36 and the title Retta Thala was revealed on 23 April 2024. Principal photography began on 29 April and wrapped up on 1 October 2024.

Retta Thala released in theatres on 25 December 2025.