Harsin is a city in the Kermanshah Province. Its name is believed to come from the name of a Babylonian goddess named Sin. There is also this theory that it might be related to the Sumerian suffix used in the name of the kings in the Ure clan.

The city has cold winter and hot summers. Spring and autumn passes rather quickly, and the cold and hot season starts soon. People of Harsin speak with different dialect of Laki, and follow Shiite sect of Islam. The city is known for its carpet and kilim and attractions such as Eshaq vand crypt, Hoose Sa’at, Taq Sangi, Harsin Citadel, Chehr Bridge.