English abbreviations from hxb to hzv
- HXB (The glycoprotein Tenascian C)
- HXD ((instrumentation) Hard X-ray Detector, an instrument on the Suzaku space telescope)
- HXX (Hay Airport)
- hy (Armenian language (ISO 639-1 code))
- HYA (Barnstable Municipal Airport (Boardman/Polando Field))
- HYC (RAF High Wycombe)
- HYD (Rajiv Gandhi International Airport (succeeded Begumpet Airport))
- HYDIM (hydraulic interface module)
- hye (Armenian language (ISO 639-2 code))
- HYF (Hayfields Airport)
- HYG (Hydaburg Seaplane Base)
- HYL (Hollis Seaplane Base)
- HYN (Taizhou Luqiao Airport)
- HYPAK (Hydraulic Power Assist Kit)
- HYPJ (Hyperjet)
- HYR (Sawyer County Airport)
- HYROP (Hydrophone Log)
- HYS (Harvard, Yale, Stanford (perennially named as the top three law schools in the U.S.))
- HYT (High Year of Tenure)
- HYV (Hyvinkää Airport)
- HYWW (Hamline Young Writers Workshop)
- Hz (Hertz)
- HZB (Merville - Calonne Airport)
- HZG (Hanzhong Airport)
- HZH (Liping Airport)
- HZK (Húsavík Airport)
- HZL (Hazleton Municipal Airport)
- HZR (False River Regional Airport)
- HZV (Hazyview Airport)