The first season of the Malayalam-language version of the Indian reality television series Bigg Boss was telecast on Asianet from 24 June 2018 to 30 September 2018, lasting 99 episodes. It was produced by Endemol Shine India and actor Mohanlal was the host of the show. The show follows a total of 18 contestants, who are isolated from the outside world for 98 days in a custom built house. Each week, one or more of the housemates are evicted by a public vote.

Bigg Boss, a Malayalam-language television reality show in India, is part of the Bigg Boss franchise produced by Endemol Shine India. It airs on Asianet and streams on Disney+ Hotstar. Inspired by the Dutch reality show Big Brother. Launched as part of Asianet's 25th-anniversary celebrations, the show has been hosted by Mohanlal since its inception.