| Acronym | Definition |
|---|
| HSG | High School Graduate |
| HSG | Housing |
| HSG | Health Solutions Group (various locations) |
| HSG | Hysterosalpingogram |
| HSG | Hysterosalpingography |
| HSG | Host Storage Group |
| HSG | Huntington Study Group |
| HSG | Hochschule St. Gallen (Switzerland) |
| HSG | Homeland Security Grant (various locations) |
| HSG | Heaven Sent Gaming (est. 2006) |
| HSG | High Specific Gravity (thermoplastics) |
| HSG | Hastings Star-Gazette (Minnesota) |
| HSG | Home Spa Goddess (website) |
| HSG | Headquarters Support Group (various organizations) |
| HSG | Hotspot Gateway (802.11 access point capability) |
| HSG | High Sierra Group |
| HSG | Homeschool Support Group (various organizations) |
| HSG | Health Services Group (initiative of the British Columbia Buildings Corp and the BC Ministry of Health, dissolved in 2003) |
| HSG | Hamburger Sinologische Gesellschaft (German: Hamburger Sino Logical Company; Hamburg, Germany) |
| HSG | Holy Shroud Guild |
| HSG | Horizon Services Group (various locations) |
| HSG | Home Shopping Group (Boca Raton, FL) |
| HSG | Home System Group (Nevada) |
| HSG | Human Services Gerontology (various universities) |
| HSG | Hemi-Spherical Grain |
| HSG | Hotel Seiyo Ginza (Japan) |
| HSG | Health Site Guide (resource) |
| HSG | Houston Support Group |
| HSG | Helicopter Services Group |
| HSG | High-Shear Granulator |
| HSG | High School Girlfriend |
| HSG | Hybrid Suspended Gate |
| HSG | Hierarchical Sequencing Graph |
| HSG | Health Strategies Group, Inc. |
| HSG | Huygens Sub-Gridding |