Miss Grand Nong Khai (Thai: มิสแกรนด์หนองคาย) is a Thai provincial beauty pageant which selects a representative from Nong Khai province to the Miss Grand Thailand national competition.

[4] Nong Khai representatives have yet to win the Miss Grand Thailand title.

The highest placement they obtained was in the top 20 finalists, achieved in 2016 and 2019 by Saranya Phinyophonphanit and Natnicha Bunyuen, respectively.

[2] The pageant was sometimes co-organized with other provincial pageants: in 2017 and 2019 with Miss Grand Bueng Kan,[8][9] and in 2020 with Miss Grand Nong Bua Lamphu–Miss Grand Bueng Kan.[10] The pageant was skipped once; in 2021, due to the COVID-19 pandemic in Thailand, the national organizer was unable to organize the national event, and the country representative for the international tournament was appointed instead.

The following is a list of Nong Khai representatives who competed at the Miss Grand Thailand pageant.