SMPN
| Acronym | Definition |
|---|---|
| SMPN | Sekolah Menengah Pertama Negeri (Indonesia) |
| SMPN | Sci-Mentor Performance Nutrition (dietary supplements) |
| SMPN | Stichting Muziek Promotie Nijkerk (Dutch: Music Promotion Foundation Nijkerk; Nijkerk, Netherlands) |
| SMPN | Surface-Modified Polymeric Nanogranules |