HNI
| Acronym | Definition |
|---|---|
| HNI | Heinz Nixdorf Institut (Germany) |
| HNI | Home Nonce Index |
| HNI | Have No Idea |
| HNI | High Networth Individual |
| HNI | HarvestNET International (Ephrata, PA) |
| HNI | Hajime No Ippo (anime) |
| HNI | HealthNet International |
| HNI | Haute-Normandie International (France) |
| HNI | Home Network Identity |
| HNI | Havelock North Intermediate School (Havelock North, Hawkes Bay, New Zealand) |
| HNI | Has No Income |