Chekka Chivantha Vaanam (transl. Crimson Red Sky) is a 2018 Indian Tamil-language crime drama film directed by Mani Ratnam, co-written with Siva Ananth. Produced by Ratnam under the banner Madras Talkies, along with Lyca Productions, the film stars Arvind Swamy, Silambarasan, Arun Vijay and Vijay Sethupathi, with Prakash Raj, Jyothika, Aishwarya Rajesh, Aditi Rao Hydari, Dayana Erappa, Jayasudha, Thyagarajan and Mansoor Ali Khan. It tells the story of three brothers who engage in a power struggle for control over their deceased father's criminal empire.

The project was kick-started with A. R. Rahman and Santhosh Sivan as the music composer and the cinematographer, respectively. The team spent nearly six months for choosing the cast and crew, respectively, with subsequent changes. Principal photography of the film commenced in February 2018 and filming continuously took place on Chennai, Abu Dhabi, Dubai and Serbia until that June. The soundtrack and background score was composed by A. R. Rahman, while Santosh Sivan handled the cinematography and Sreekar Prasad edited the film.

Chekka Chivantha Vaanam was released on 27 September 2018 to positive reception from critics and audiences, praising the direction and performances of the cast, but criticising it for lacking strong women characters. Chekka Chivantha Vaanam won two awards at the Ananda Vikatan Cinema Awards, and one award each at the Behindwoods Gold Medal Film Festival, and Norway Tamil Film Festival Awards, while it was nominated for the 8th South Indian International Movie Awards.