Dreneto (Bulgarian: Дренето) is a protected area in the western Balkan Mountains of Bulgaria.

Nowadays, due to climate changes, the site is drying out and serious care is taken for its protection and conservation.

[2] The protected area includes natural meadows and old-growth oak forests which provide nesting ground for gray herons and white storks.

Among the tree and shrub species that can be found in Dreneto are common walnut (Juglans regia), European alder (Alnus glutinosa), white willow (Salix alba), field elm (Ulmus minor), European elder (Sambucus nigra), etc.

The marshlands are home to invertebrates, such as water scorpions (Nepa cinerea) and several dragonfly species (Odonata).