| Abbreviation | Definition |
|---|---|
| HSOP | Humane Society of the Palouse |
| HSPA | Historical Society of the Phoenixville Area |
| HSPB | Humane Society of the Palm Beaches |
| HSPC | Humane Society of Portage County |
| HSPC | Humane Society of Pulaski County |
| HSPC | Humane Society of Putnam County |
| HSPCA | Houston Society for the Prevention of Cruelty to Animals |
| HSPCA | Humane Society for the Prevention of Cruelty to Animals |
| HSPD | Historical Society of Palm Desert |
| HSPE | Hawaii Society of Professional Engineers |
| HSPR | Humane Society of Puerto Rico |
| HSS | Henry Sweet Society for the History of Linguistic Ideas |
| HSS | Hungarian Simulation Society |
| HSSA | Historical Sites Society of Arcata |
| HSSC | Humane Society of Scott County |
| HSSC | Humane Society of Summit County |
| HSSC | Humane Society Sarasota County |
| HSSFC | Canadian Federation for the Humanities and Social Sciences |
| HSSFC | Fdration Canadienne des Sciences Humaines |
| HSSFC | Fdration Canadienne des Sciences Humaines et Sociales |