| Firuzkuh | |
| Native Name: | fa|فيروزكوه |
| Native Name Lang: | fa |
| Settlement Type: | City |
| Pushpin Map: | Iran |
| Coordinates Footnotes: | [1] |
| Subdivision Type: | Country |
| Subdivision Name: | Iran |
| Subdivision Type1: | Province |
| Subdivision Name1: | Tehran |
| Subdivision Type2: | County |
| Subdivision Name2: | Firuzkuh |
| Subdivision Type3: | District |
| Subdivision Name3: | Central |
| Unit Pref: | Metric |
| Population As Of: | 2016 |
| Population Total: | 17453 |
| Population Density Km2: | auto |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
Firuzkuh (fa|فيروزكوه) is a city in the Central District of Firuzkuh County, Tehran province, Iran, serving as capital of both the county and the district.[2]
At the time of the 2006 National Census, the city's population was 15,807 in 4,334 households.[3] The following census in 2011 counted 20,371 people in 5,484 households.[4] The 2016 census measured the population of the city as 17,453 people in 5,700 households.[5]
It is northeast of Tehran, in the middle of Alborz Mountains. Previously, it was part of Mazandaran province.
The city has a relatively cool and windy climate. It has some natural attractions and is famous for them, including Tange Vashi, Boornic Cave, Roodafshan Cave, Village Gadook, and the sight-seeing of villages like Varse-Kharan, Zarrin Dasht, Darreh-Deh, and Kaveh Deh.
Firuzkuh is rich in historical heritage and some of the most ancient objects in Tehran Province have been found there. Among its villages, Darreh-Deh contains the most ancient places. During the reign of Timur, Ruy González de Clavijo praised the town's concentric citadel and suggested that it could resist any assault.[6] Nearby castles belonged to the Nizari Ismaili state. Veresk Bridge lies on the road north of Firuzkuh.
Firuzkuh has a cold semi-arid climate (Köppen BSk).