IRHS
| Acronym | Definition |
|---|---|
| IRHS | Ironwood Ridge High School (Oro Valley, Arizona) |
| IRHS | Indian River High School (Delaware and Virginia) |
| IRHS | Indoor Residual House Spraying |
| IRHS | International Road Haulage Survey (UK) |
| IRHS | Indian Rivers Humane Society (Aylett, VA) |
| IRHS | Iron Range Historical Society (est. 1973; Gilbert, MN) |
| IRHS | International Reproductive Health Survey |