Delijan (Persian: دلیجان delijān) is a town in Markazi Province, Iran, with a population of about 60,000 people. Delijan is a shahrestan (Persian: شهرستان shahrestān) located 80Km (50 Mi) from Qom and 160Km (100 Mi) from Isfahan.
The native population of Delijan speaks a dialect they call Delijani (or Diligoni in the native language). The native language of Delijan seems to be a version of the old-persian language, which is similar to the language spoken in Abyaneh one of the oldest persian village located about an hour away from Delijan.
Sites of interest include the 15th Khordad dam and Chal Nakhjir cave as well as its hot spring resort.
Delijan is an industrial town and is home to several popular carpet companies like the Mahestan, Setareh Talaii and Said companies. Also home of several companies producing a type of roof isolation called "Isogam".
The area North-East of Delijan is populated by seven villages, this area is referred to as Jasb.