RCNS
| Acronym | Definition |
|---|---|
| RCNS | Research Center for Neutrino Science (Tohoku University; Japan) |
| RCNS | Real Club Nautico de Salinas (Spanish nautical club) |
| RCNS | Research Center for Nanodevices and Systems (Hiroshima University) |
| RCNS | Redundant Complex Number System |
| RCNS | Research Center for the Natural Sciences (est. 1962; University of Santo Tomas; Philippines) |
| RCNS | Ramapo Community Nursery School (New City, NY) |
| RCNS | Rockland Cooperative Nursery School (New York) |