Miss Grand Japan 2018

Miss Grand Japan 2018 (2018 ミス・グランド・ジャパン) was the 4th edition of the Miss Grand Japan pageant, held on July 30, 2018, at the WOMB Club, Shibuya, Tokyo. Fifteen contestants, who applied through an online application launched from December 24, 2017, to February 24, 2018, competed for the title.

At the end of the event, a 24-year-old model from Saitama, Haruka Oda, was elected the winner, while Rie Kuroki of Aichi and Kanami Tobita of Miyagi were named the runners-up. Haruka Oda later took part in the international parent stage, Miss Grand International 2018, held in Myanmar on October 25, 2018, and was named the fifth runner-up, making her the first Japanese candidate to reach the top 5 finalists in the said international event.

Contestants
Initially, seventeen contestants qualified for the national final round, but two withdrew, making the final of fifteen contestants.