HBW may refer to:

• Brinell scale, measuring indentation hardness
• Handbook of the Birds of the World
• Hawaiian baby woodrose (Argyreia nervosa), a perennial climbing vine with psychoactive seeds
• H-B Woodlawn, a school in Arlington, Virginia, United States
• HBW Balingen-Weilstetten, a German handball club
• Hot bridgewire
• Joshua Sanford Field, serving Hillsboro, Wisconsin, United States
• Heartbreak Weather, the second studio album by Niall Horan.