Chahar Taq (, also Romanized as ChahÃÂr à ¢ÃÂq; also known as Chatak and ShamsÃÂbÃÂd-e ChahÃÂr à ¢ÃÂq) is a village in Mohammadabad Rural District, in the Central District of Marvdasht County, Fars province, Iran. At the 2006 census, its population was 662, in 149 families.