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

[5] Since 2016, Prachinburi representatives have not secured any placement in the Miss Grand Thailand national contest.

The license for Prachinburi province was granted to a media company led by Praphan Rayayoi (ประพันธ์ ระยาย้อย),[6] who appointed Nittaya Aiem-akson as Prachinburi candidate for the Miss Grand Thailand 2016 national contest.

[7] In 2017, Rayayoi lost the license to Nattapol Duj-ariyathanon,[5] who organized the first Miss Grand Prachinburi contest on January 29, 2017, in Na Di district[5] and named Kanoklak Promsanthia the winner.

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