Vidaamuyarchi is a 2025 Indian Tamil-language action thriller film written and directed by Magizh Thirumeni. It is produced by Allirajah Subaskaran under Lyca Productions. The film stars Ajith Kumar, Arjun, Trisha, Regena Cassandrra and Arav.

The film has music composed by Anirudh Ravichander, cinematography handled by Om Prakash and editing by N. B. Srikanth.

The film was released in theatres on 6 February 2025 to mixed reviews from critics, who praised the lead cast's performance, visuals and action sequences, while the storyline and narration received criticism. Although underperformed at the box office, it became the highest-grossing Tamil film of 2025 by the end of its theatrical run.