| REN | round window niche | 圆窗壁龛 |
| REN | Orenburg, Russia | 俄罗斯奥伦堡 |
| REN | Ringer Equivalent Number | 响铃等效数 |
| REN | Restoration Ecology Network | 恢复生态网络 |
| REN | Reef Education Network | 珊瑚礁教育网络 |
| REN | Re- Name | 重新命名 |
| REN | renal | 肾的 |
| REN | Acadian Redfish | 阿卡迪亚红鱼 |
| REN | Remote Enable | 远程启用 |
| REN | Radio Entertainment Network | 无线电娱乐网络 |
| REN | Real-Time Event Notification (PeopleSoft) | 实时事件通知(PeopleSoft) |
| REN | Requirements Engineering | 需求工程 |
| REN | Renown | 名声 |
| REN | Ringer Equivalence Number | Ringer等效数 |
| REN | Rename | 重命名 |
| REN | Resident Evil Network (gaming community website) | 生化危机网络(游戏社区网站) |
| REN | Regional Eye Network (TV show) | 区域眼网络(电视节目) |
| REN | Rede EcolÓgica Nacional (Portugal) | Rede EcolÓgica Nacional (Portugal) |
| REN | Orenburg (Russia) | 奥伦堡(俄罗斯) |
| REN | Rede ElÉctrica Nacional (Portugal) | Rede ElÉctrica Nacional (Portugal) |
| REN | Research and Educational Network | 研究和教育网络 |
| REN | Star Trek: Renaissance (fan fiction series) | 《星际旅行:文艺复兴》(粉丝小说系列) |
| REN | Resident Evil Nemesis (Playstation game) | 《生化危机复仇者》(Playstation游戏) |