Golestan National Park () is a national park in northeastern Iran with an area of at elevations of .
Golestan National Park stretches over an area of in the easternmost part of the Hyrcanian forests in the Golestan, North Khorasan and Semnan provinces; its elevation ranges from . It harbours deciduous forests, grasslands, shrublands and rocky areas.
Mammal species in Golestan National Park include the leopard (Panthera pardus), Indian wolf (Canis lupus pallipes), brown bear (Ursus arctos), golden jackal (Canis aureus), wild boar (Sus scrofa), Caspian red deer (Cervus elaphus maral), roe deer (Capreolus capreolus), urial (Ovis orientalis arkal), wild goat (Capra aegagrus) and goitered gazelle (Gazella subgutturosa).