HB
| Abbreviation | Meaning | Tamil Meaning | Category |
|---|---|---|---|
| HB | Horizontal Branch | - | Atmospheric Research Center |
| HB | Hug Back | - | Chemistry |
| HB | Hemoglobin | - | Medical(slang) |
| HB | Handbook | - | Organizations |
| HB | High Bay | - | Organizations |
| HB | Hug Back | - | Sms Text Smileys and Emoticons |
| HB | Hurry Back | - | ISO Country Codes |
| HB | Hard Black | - | Business and Finance |