| Abbreviation | Definition |
|---|---|
| RUI | Remote User Interface |
| RUI | Retirement Unlimited Inc |
| RUI | Revitalisation Urbaine Integree |
| RUI | Rundown Urban Infrastructre |
| RUIC | Reserve Unit Identification Code |
| RUIM | Re Usable Identification Module |
| RUIM | Removable User Identiy Module |
| RUIM | Removable User Interface Module |
| RUIN | Radial Ulnar Ischemic Necrosis |
| RUIN | Redundant Unnecessary inefficient Necessary |
| RUIN | ruined |
| RUISHAN | Rui Shan's |
| RUK | R+gas uzFmjdarb+bas koled~a |
| RUK | Rat Urinary Kallikrein |
| RUK | regulator of ubiquitous kinase |
| RUK | Rest of United Kingdom |
| RUK | Rigas uznemejdarbibas koledža |
| RUK | Rīgas uzņēmējdarbības koledža |
| RUL | Ready Up Live |
| RUL | Reasonable Useful Lifetime |