Miss Grand Indonesia 2018 was the first edition of the Miss Grand Indonesia pageant, held on July 21, 2018, at the Jakarta Convention Center, Senayan City, Central Jakarta. Thirty contestants, who qualified for the national stage via regional auditions, competed for the title. Of whom, a 26-year-old University of Indonesia-graduated model representing Bengkulu, Nadia Purwoko [id], was announced the winner, while Vivi Wijaya Huang of North Sumatra and Stephanie Cecillia Munthe of Jakarta were named the first and second runners-up, respectively.

Nadia later represented Indonesia at the international parent stage, Miss Grand International 2018, held on October 25 that year in Yangon, Myanmar, where she was named the second runner-up as well as obtained the special title of Best in Social Media Award.

The event was supported by the Ministry of Tourism of Indonesia, Junior Chamber International (JCI), and MarkPlus, Inc., and was broadcast nationwide through a free-to-air television network, SCTV.

After 5 consecutive years of appointing representatives to compete at the Miss Grand International pageant, the first stand-alone Miss Grand Indonesia was scheduled to happen in 2018 following the franchise transfer to a new organizer, Dharma Gantari Foundation. The memorandum of understanding singing ceremony between the international organ and the local franchise holder was held at Indonesia's Ministry of Tourism Office in Jakarta on January 29, 2018.

The finalists for Miss Grand Indonesia 2018 were determined through the audition held in 18 cities countrywide from February to April 2018. The qualified contestants were later assigned to represent one of Indonesia's provinces that they were affiliated with.

Thirty contestants competed for the title.