Sakunothayan Botanical Garden (Thai: สวนพฤกษศาสตร์สกุโณทยาน) is an botanical garden in Wang Thong District, Phitsanulok Province, northern Thailand.

The park, at kilometer 33 of Phitsanulok-Lomsak Road, has 164 species of plants.

[1] In 1955 "Wang Nok Aen Forest park" was established, with a total area of approximately 130 ha (320 acres).

On 4 February 2018 Department of National Parks, Wildlife and Plant Conservation upgraded it to "Sakunothayan Botanical Garden".

[2][3] Wang Nok Aen or Sakunothayan Waterfall, within the arboretum, is a 10 metres (33 ft) elevation drop of the Wang Thong River.