HIW or Hiw may refer to:
Places Hiw, or Hu, Egypt Hiroshima-Nishi Airport, by IATA code Hiw (island), the northernmost island of Vanuatu
Others Hiw language, spoken on the island of Hiw (Vanuatu) Hizb al-Ikha al-Watani, an Iraqi political party in the 1930s Highwire (protein), an E3 Ubiquitin Ligase frequently studied in Drosophila High Impact Wrestling Canada, a wrestling promotion