Aari Arujunan is an Indian actor who has appeared in Tamil language films. He made his lead debut in Rettaisuzhi (2010) produced by director Shankar, before having a breakthrough performance as Murugan in Nedunchaalai (2014) and starring in the supernatural thriller Maya. In 2021, he emerged as the title winner of the Tamil reality television show Bigg Boss Tamil Season 4.

Rettaisuzhi is a 2010 Indian Tamil-language drama film written and directed by Thamira. It stars filmmakers K. Balachander and Bharathiraja along with Anjali, Aari Arujunan, Jayachitra, Karunas, Manobala, and Ilavarasu in supporting roles. The film released on 23 April 2010.