| Sarmaj castle | |
| Native Name: | قلعه سرماج |
| Location Town: | Harsin County |
| Location Country: | Iran |
| Building Type: | Castle |
Sarmaj castle (Persian: قلعه سرماج) is a historical castle located in Harsin County in Kermanshah Province, The longevity of this fortress dates back to the Sasanian Empire.[1] [2]