Garmsar is a city in and the capital of Garmsar County, Semnan Province, Iran.
Garmsar is located about 95 kilometres (59 mi) southeast of Tehran. It lies on the edge of Dasht-e Kavir, Iran’s largest desert. Many people in the city commute to Tehran due to its proximity.
Ghasre Bahram, The Stone Way, Stonvand Castle, the Sar Darre Mountains, and Kavir Desert National Park are tourist attractions located in the area.