Gerecse is a mountain range in northwestern Hungary^{[clarification needed]} that belongs to the Transdanubian Mountains.

The range lies in the Central Transdanubian region and connects Vértes Hills with Pilis Mountains in Komárom-Esztergom County, between the town of Tatabánya and the Danube River. Gerecse occupies an area of 850 km² (20,300 ha). The highest point is Nagy-Gerecse at 634 m.^[1] The main rock is limestone and chalk.

Deciduous oak forests cover the lower slopes, with submontane species of Quercus, Carpinus, Fagus, and at higher altitudes karst scrub. The area is 70% forest, 5% scrubland, 10% grassland, and 15% artificial landscapes.^[1] Yearly sunshine duration is around 1,980 hours. The average annual temperature above the height of 350 meters is 9.5 C (in January -2,8 C). The average annual precipitation is 640 millimeters.

• Farkasvölgy (Wolf-valley)
• Forest in the Gerecse
• The monument of the Battle of Pusztamarót, 1526
• Gerecse near Péliföldszentkereszt

• Transdanubian Mountains
• Geography of Hungary