Alborz province
| Alborz province Persian: استان البرز | |
|---|---|
| Location of Alborz province within Iran | |
| Coordinates: 35°56′N 50°54′E / 35.933°N 50.900°E | |
| Country | Iran | 
| Region | Region 1 | 
| Capital | Karaj | 
| Counties | 7 | 
| Government | |
| • Governor-general | Mojtaba Abdollahi (Principlist) | 
| Area | |
|  • Total | 5,833 km2 (2,252 sq mi) | 
| Population  (2016) | |
|  • Total | 2,712,400 | 
| • Density | 470/km2 (1,200/sq mi) | 
| Time zone | UTC+03:30 (IRST) | 
| Main language(s) | Persian | 
Alborz province (Persian: استان البرز) is one of the 31 provinces of Iran. Its capital is the city of Karaj, which lies 10 km west of Tehran, at the foothills of the Alborz mountains. Alborz is Iran's smallest province in area.