HW

HW can signify:

• Halloween
• Hardware (disambiguation)
• the Hartford Whalers, a former professional ice hockey franchise
• Harvard-Westlake, a private college-preparatory school in North Hollywood, California
• Heriot-Watt University, Edinburgh
• Homework, work for school
• Honeywell, a U.S. corporation
• Hotwire (disambiguation)
• Housewife
• Hutchison Whampoa, a company corporated in Hong Kong and China
• former U.S. President George H. W. Bush
• Hwair (ƕ), a Gothic letter