Koludan (, also Romanized as Kolà «dÃÂn; also known as Kaldà «n, Koldà «n, Kà «ldÃÂn, and Kuldà «n) is a village in Baraan-e Jonubi Rural District, in the Central District of Isfahan County, Isfahan Province, Iran. At the 2006 census, its population was 70, in 16 families.