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

The highest and only placement obtained by its representatives was in the top 20 finalists, reached in 2017 by Patamavadee Chuayprasit.

[7] 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 Sakhon province was granted to Praphan Rayayoi (ประพันธ์ ระยาย้อย),[8] who appointed Kamonnee Nuttayangkun as the first Miss Grand Samut Sakhon.

[5] She organized the first Miss Grand Samut Sakhon contest on May 21, 2017, and named Kewalee Thowdsin the winner.

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