Hanapepe or Hanapēpē is a historic, unincorporated community in Kauai County, Hawaii, United States. The name means "crushed bay" in Hawaiian, which may refer to landslides in the area. For statistical purposes, the United States Census Bureau has defined Hanapepe as a census-designated place (CDP). The population was 2,678 at the 2020 census, up from 2,153 at the 2000 census.

Kauaʻi County, officially known as the County of Kauaʻi, is a county in the U.S. state of Hawaiʻi. It encompasses the islands of Kauaʻi, Niʻihau, Lehua, and Kaʻula. According to the 2020 Census, the population was 73,298. The county seat is Līhuʻe.