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

[6][7] However, the 2020 first runner-up, Indy Johnson, was later appointed Miss Grand Thailand 2021 due to the COVID-19-related cancellation of the 2021 national contest.

[8] 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 Pathum Thani province was granted to Nanyaphat Kotchasan, who organized the first Miss Grand Pathum Thani contest on May 15, 2016, in Rangsit, and Suphattra Rodphai was named the winner.

[5] After Kotchasan relinquished the franchise in 2019, it was granted to different organizers annually[4][9] until it came into the hands of a talent manager Anusit Thungsuk who served as the pageant director since 2023.

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