Miss Grand International 2018 was the sixth edition of the Miss Grand International pageant, held on October 25, 2018, at the One Entertainment Park in Yangon, Myanmar, making it the first time the mainstream international pageant was held in Myanmar. Contestants from seventy-five countries and territories competed for the title, of whom Clara Sosa of Paraguay was announced the winner and was crowned by Miss Grand International 2017, Jose Lora of Peru.

Miss Grand International also known as Miss Grand is an international beauty pageant franchise that was based in Thailand. It consists of the annual national pageant Miss Grand Thailand, as well as the international competition Miss Grand International, to which participating rights are licensed to organizers in other countries. The franchise has been owned and run by a Thai stock exchange-listed company with the same name, also known as MGI PCL, since its inception in 2013, with Nawat Itsaragrisil as the president.