| Modarres Expressway | |
|---|---|
| بزرگراه مدرّس | |
| Route information | |
| Length: | 8.7 km (5.4 mi) | 
| Major junctions | |
| North end: |  Chamran Expressway   Valiasr Street | 
| South end: |  Haft-e Tir Square | 
| Location | |
| Major cities: | Tehran | 
| Highway system | |
| Freeways | |
Modares Expressway (Persian: بزرگراه مدرس), prior to 1979 Iranian Revolution known as the Shahanshahi Expressway (Persian: بزرگراه شاهنشاهی; English: Imperial Expressway) is an expressway in Tehran. It starts from north of Tehran at the end of Chamran Expressway in Elahiyeh and goes south and ends in Haft-e Tir Square.