Göygöl National Park (Azerbaijani: Göygöl Milli Parkı) — is a national park of Azerbaijan. It was established by the decree of the President of Azerbaijan Ilham Aliyev, in an area in Goygol Rayon administrative district on April 1, 2008 on the basis of the former "Goy Gol State Reserve" that was established in 1925 and which it superseded, on a surface area of 12,755 hectares (127.55 km2). It was enlarged from 6,739 hectares (67.39 km2) of the former state reserve to its current surface area as a national park.
The national park includes one of the most beautiful and cleanest lakes in Azerbaijan, Lake Göygöl. The reserve is intended to protect the natural ecosystem of the subalpine zones of the northern slopes of the Lesser Caucasus. During the Soviet era, it had been deprived of its reserve status, but was restored later.
The area of Göygöl is almost entirely covered by forests and has a rich flora with over 420 plant species, including 20 which are endemic to the area. The major types of trees are Chestnut-Leaved Oak (Quercus castaneifolia), Caucasian Oak (Quercus macranthera), Caucasian Ash (Fraxinus angustifolia subsp. oxycarpa), European Ash (Fraxinus excelsior), European Hornbeam (Carpinus betulus), Oriental Hornbeam (Carpinus orientalis), Oriental Beech (Fagus orientalis), Velvet Maple (Acer velutinum), Cappadocian Maple (Acer cappadocicum), Caucasian Lime Tree (Tilia dasystyla subsp. caucasica), etc.
Shrub species occurring in the area include the Medlar (Crataegus azarolus subsp. pontica), European barberry (Berberis vulgaris), European Cornel (Cornus mas), European spindle (Euonymus europaeus), Blackberry (Rubus fruticosus), etc.