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

[3] Udon Thani representatives have yet to win the Miss Grand Thailand title.

The license for Udon Thani province was granted to an event organizer Amnat Chaiyabut,[3] who was also the licensee for other 4 Isan contests, including Khon Kaen, Sakon Nakhon, Nong Bua Lamphu, and Loei.

[13] The following table details Miss Grand Udon Thani's annual editions since 2016.

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