Koshku (, also Romanized as Koshkà « and Kashkà «; also known as Kish Kà «h, Kooshk, Koshkà «h, Kà «shkà «, and Poshtkà «h) is a village in Eshkanan Rural District, Eshkanan District, Lamerd County, Fars province, Iran. At the 2006 census, its population was 639, in 152 families.