Chahak (Persian: چهك, also Romanized as Chahak) is a village located in the Cheghapur Rural District (دهستان چغاپور), within the Kaki District (بخش کاکی) of Dashti County (شهرستان دشتی), Bushehr Province (استان بوشهر), Iran. It is situated in the southwestern region of the country, close to the Persian Gulf.
As of the 2006 National Census, the village of Chahak had a population of 1,304 residents across 269 families. The subsequent 2016 census reported a population of 1,180 people living in 335 households. The village serves as a local community hub within its rural district, contributing to the agricultural and local economic activities characteristic of the region in Bushehr Province. Its geographical position in Bushehr Province, a significant coastal area of Iran, places it within a broader region known for its energy resources and maritime connections.