| Acronym | Definition |
|---|
| HMSS➣Her Majesty's Secret Servant (James Bond fansite) |
| HMSS➣Houghton Mifflin Social Studies (textbook publisher) |
| HMSS➣Hawaii Marine Science Studies |
| HMSS➣Hospital Management Systems Society |
| HMSS➣Helmet Mounted Sight System |
| HMSS➣(His/Her) Majesty's Secret Service |