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

[6] Samut Prakan representatives have yet to secure a spot in the Miss Grand Thailand national contest.

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 Samut Prakan province was obtained by Pitakchai Chitjan[5] and Supharat Thammasarot,[6] who assigned her daughter, Avika Thammasarot, as the province representative to compete nationally.

[14] The following table details Miss Grand Samut Prakan's annual editions since 2017.

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