| Country: | IRN |
| Type: | road |
| Route: | 18 |
| Terminus A: | Maravehtapeh, Golestan |
| Terminus B: | Mahmudabad, Mazandaran |
| Length Km: | 462 |
| Provinces: | Golestan, Mazandaran |
| Cities: | Kalaleh, Golestan Gonbad-e Qabus, Golestan Aqqala, Golestan Bandar Torkaman, Golestan Bandar-e-Gaz, Golestan Galugah, Mazandaran Behshahr, Mazandaran Neka, Mazandaran Amirabad, Mazandaran Bahnemir, Mazandaran Babolsar, Mazandaran Fereydunkenar, Mazandaran Mahmudabad, Mazandaran |
| Junction: | |
| Map Custom: | yes |
Road 18 is a road in northern Iran in Golestan Province and Mazandaran Province.[1] In Golestan it connects Maravehtapeh to Kalaleh, Gonbad-e Qabus, Bandar Torkaman and Bandar-e-Gaz. In Mazandaran, it runs concurrent with Road 22 until Neka, where it turns towards Caspian Sea coastline and runs parallel to it going through Babolsar, Fereydunkenar and ends at Mahmudabad