| Abbreviation | Definition |
|---|---|
| HSSC | Harrisburg Shetland Sheepdog Club |
| HSSC | Hythe and Saltwood Sailing Club |
| HTAC | Halifax Trojan Aquatic Club |
| HTFC | Hoddesdon Town Football Club |
| HTMC | Hawaiian Trail and Mountain Club |
| HTOC | Hinckley Triumph Owners Club |
| HTOC | HONDA TWIN OWNER CLUB |
| HTOC | Hot Torpedo Owners Club |
| HTSC | Harwich Town Sailing Club |
| HUC | Hellenic University Club |
| HUFC | Hartlepool United Football Club |
| HUFC | Heidelberg United Football Club |
| HUMM | Horizons Unlimited Mountain Madness |
| HUNT | Hunters United Now Tomorrow |
| HURC | Harvard Undergraduate Robotics Club |
| HVCB | Historical Vehicle Club of Belgium |
| HVCC | Hope Valley Country Club |
| HVCC | Huntingdon Valley Country Club |
| HVWC | Holmen Viking Wrestling Club |
| HVWC | Hurricane Valley Wrestling Club |