Lahijan (, also known as, Lahijan) is a Caspian sea resort in and the capital of Lahijan County, Gilan Province, Iran. At the 2006 census, its population was 71,871, in 21,518 families.

Lahijan (, also known as, Lahijan) is a Caspian sea resort in and the capital of Lahijan County, Gilan Province, Iran. At the 2006 census, its population was 71,871, in 21,518 families.