HHW

HHW may refer to:


 * hhw (trigraph), used for the Dene Suline language
 * Hahndorf Hill Winery, in South Australia
 * Heating hot water, water used for heating
 * Highland Hall Waldorf School, in Northridge, California, United States
 * Hip Hop Weekly (magazine)
 * Household hazardous waste
 * Stan Stamper Municipal Airport, in Hugo, Oklahoma, USA
 * Harmony Hall West, headquarters of the Barbershop Harmony Society