ISRN
| Acronym | Definition |
|---|---|
| ISRN | International Scholarly Research Network (journal series) |
| ISRN | International Standard Road Number |
| ISRN | International Standard Technical Report Number |
| ISRN | Internet Signal Radio Network |
| ISRN | Innovation Systems Research Network (University of Toronto; Canada) |
| ISRN | I'll Stop Rambling Now (IRC) |
| ISRN | Improvement Science Research Network (US NIH) |
| ISRN | Incorporated Society of Registered Naturopaths (est. 1934; UK) |