| Abbreviation | Definition |
|---|---|
| RITP | Rueda In The Park |
| RITS | Record Integration Tracking System |
| RITS | Relationship Information Tracking System |
| RITS | Research Information Technology Systems |
| RITS | Retailer Inventory Tracking System |
| RITS | RNA induced transcriptional silencing |
| RITS | Rotary International Travel Services |
| RITS | Royal Institute of Technology and Science |
| RITT | Rural Interdisciplinary Team Training |
| RIU | Random Insanity Universe |
| RIU | Rapid Intervention Unit |
| RIU | Really Inadequate Unfortunately |
| RIU | refractive index units |
| RIU | Ring Interface Unit |
| RIU | rotation invariant uniform |
| RIV | Rallye International du Valais |
| RIV | Rapid Intervention Vehicle |
| RIV | Regolamento Internazionale Veicoli |
| RIV | Relaxed Inner Valence |
| RIV | Resource Indication Value |