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

The highest and only one placement obtained by its representatives was the fourth runner-up, won in 2016 by Anchana Archklom,[6][7] who later competed internationally in the Top Model of the World pageant and was ranked fifth.

[6] In 2016, after Miss Grand Thailand began franchising the provincial competitions to individual organizers, who would name seventy-seven provincial titleholders to compete in the national pageant, the license for Phetchaburi province was obtained by an entrepreneur Maiaek Chaiphet, who appointed a model Anchana Archklom to compete at the 2016 national contest and was the fourth runner-up.

[6] The first Miss Grand Phetchaburi contest took place the following year after the license was transferred to another organizer, Chanyapatch Asawapornwiput.

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