The Dodahak Caravanserai is a Safavid dynasty caravanserai located on the eastern bank of the Qomrud river, in Qom province , Iran .
Three towers were built on each of the northern , eastern and western walls, which indicates the caravanserai had been like a fortress. After passing through the entrance gate , there is a iwan (porch) with a length of 30.11 meters that is connected to the courtyard by the stairs. The caravanserai was built on the historic route of Silk Road.
Dodahak caravanserai was registered in national index in 1998 by the Iranian Cultural Heritage Organization with number 1983 .