Lar National Park (Persian پارک ملی لار park-e melli-e lar) is a protected area in Iran on the foot of Mount Damavand, straddling the provinces of Mazandaran and Tehran. The Lar Dam is located in the park, and is a major tourist attraction because it is just 70 kilometers north-east of Tehran. The park covers around 30,000 hectares. It has been a national park since 1976 and a protected area since 1982 by the Iran Department of Environment. Since 1991 hunting has been prohibited.
The park is accessible by car via Haraz road (Road 77)