| Term | Full Form | Category |
|---|---|---|
| HWMS | Hallie Wells Middle School | Others |
| HWMS | Halton Waste Management Site | Others |
| HWMS | Haysville West Middle School | Others |
| HWMS | Hello We Make Stuff | Others |
| HWMS | Henry Wilson Memorial School | Others |
| HWMS | Herald Whitaker Middle School | Others |
| HWMS | Highlander Way Middle School | Others |