Miss Grand Suphan Buri
Miss Grand Suphan Buri is a Thai provincial beauty pageant which selects a representative from Suphan Buri province to the Miss Grand Thailand national competition. It was founded in 2016 by an entrepreneur Napasanan Kamolsitthiphan.
Suphan Buri representatives have yet to win the Miss Grand Thailand title. The highest and only placement they obtained in the contest was in the top 20 finalists, achieved in 2020, 2024, and 2025.
History
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 Suphan Buri province was granted to a local entrepreneur Napasanan Kamolsitthiphan, who organized the first Miss Grand Kanchanaburi contest in May 2016 and named Parityaphat Khonthong the winner. Kamolsitthiphan relinquished the franchise to Patima Kritchamaiphak in 2018.The pageant was skipped 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.
;Winner gallery
Editions
The following table details Miss Grand Suphan Buri's annual editions since 2016.| Edition | Date | Final venue | Entrants | Winner | |
| 1st | May 30, 2016 | Sri U-Thong Grand Hotel, Mueang Suphan Buri, Suphan Buri | 7 | Parityaphat Khonthong | |
| 2nd | May 13, 2017 | Robinson Lifestyle Suphanburi, Mueang Suphan Buri, Suphan Buri | 12 | Chanyathorn Charoenwisan | |
| 3rd | May 26, 2018 | Robinson Lifestyle Kanchanaburi, Mueang Kanchanaburi, Kanchanaburi | 20 | ||
| 4th | May 26, 2019 | Songphanburi Hotel, Mueang Suphan Buri, Suphan Buri | 20 | Olivier Manirote | |
| 5th | July 26, 2020 | , Mueang Suphan Buri, Suphan Buri | 10 | Kanyanarat Munlee | |
| 6th | January 30, 2022 | Auditorium, Suphan Buri Campus | 9 | Thanatchaporn Pankaew | |
| 7th | December 20, 2022 | Central Chaengwattana, Pak Kret, Nonthaburi | 16 | Kanokporn Nuttayothin | |
| 8th | October 18, 2023 | Songphanburi Hotel, Mueang Suphan Buri, Suphan Buri | 20 | Kanokwan Nansungnern | |
| 9th | October 1, 2024 | Suban Hall, Don Mueang, Bangkok | 13 | Piyaporn Sangsuwan |
;Notes