<div class="floatright" style="width: auto; margin-left: auto; margin-right: auto;">
</div> Miss Grand Phitsanulok () is a Thai provincial beauty pageant which selects a representative from Phitsanulok province to the Miss Grand Thailand national competition. It was founded in 2016 by a lance corporal, Krit Pondetwisai (), as an inter-provincial pageant with other four provincial stages in the lower northern region.
Phitsanulok representatives have yet to win the Miss Grand Thailand title. The highest and only placement they obtained was in the top 20 finalists, achieved by Sukontha Jankhao and Ornchada Chaiyasarn in 2020 and 2025 respectively.
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 Phitsanulok province was granted to a local policeman, Krit Pondetwisai, who was also the licensee for other 4 lower northern stages, including Phichit, Uttaradit, Phetchabun, and Kamphaeng Phet. Pondetwisai co-organized the first Miss Grand Phichit with the mentioned 4 provicianl stages in Mueang Phitsanulok on April 17, 2016, and named Nicharee Chermrod the Phitsanulok's winner. The license was then transferred to another organizer team led by Kanoknat Likitpraiwan () the following year.
In addition to the 2016 edition, the pageant was also organized in parallel with another Miss Grand Thailand provincial stage, Miss Grand Uttaradit, in 2022. It was skipped once; 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.
The following table details Miss Grand Phitsanulok's annual editions since 2016.
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The following is a list of Phitsanulok representatives who competed at the Miss Grand Thailand pageant. <div style="white-space:nowrap">
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