| RDI | Remote Defect Indication | 远端失效指示 |
| RDI | Residential Density Incentives | 居住密度激励措施 |
| RDI | Research, Development and Innovation | 研究、开发和创新 |
| RDI | Respiratory Disturbance Index | 呼吸障碍指数 |
| RDI | Remote Debugging Interface | 远程调试界面 |
| RDI | Relative Dose Intensity | 相对剂量强度 |
| RDI | Recommended Daily Intake | 建议每日摄入量 |
| RDI | Remote Data Input | 远程数据输入 |
| RDI | Relationship Development Intervention | 关系发展干预 |
| RDI | Report Data Interchange | 报告数据交换 |
| RDI | Regenerative Design Institute | 再生设计院 |
| RDI | Row Digital Interconnect | 行数字互连 |
| RDI | Radiology & Diagnostic Imaging, PSC (Owensboro, Kentucky) | 放射学及诊断成像,肯塔基PSC(欧文斯伯勒) |
| RDI | Received Differential Input | 接收的差分输入 |
| RDI | Reconnaissance, Detection & Identification | 侦察、检测和鉴定 |
| RDI | Report Data Interface | 报表数据接口 |
| RDI | Reseau d'Information (Radio Canada's French language news service) | 'Information网格d(无线电加拿大的法语新闻社) |
| RDI | Reference Daily Intake | 每日参考摄入量 |
| RDI | Radiation Dynamics Incorporated | 辐射动力学公司 |
| RDI | Resource Development Incorporated | 资源开发公司 |
| RDI | Raw Data Interface | 原始数据接口 |
| RDI | Rochester Diamond Importers | 罗切斯特钻石进口商 |
| RDI | Radar Doppler À Impulsions (French military plane radar) | Radar Doppler À Impulsions (French military plane radar) |
| RDI | Rainfall Dependent Infiltration | 降雨相关渗透 |
| RDI | Range-Doppler Interferometry | 距离多普勒干涉测量 |
| RDI | Redirection Destination Index | 重定向目标索引 |
| RDI | Resource Development Initiative (Children's Services Council and the United Way of Palm Beach County) | 资源开发的主动性儿童服务委员会和美国的棕榈滩郡 |
| RDI | Royal Designer for Industry | 皇家工业设计师 |
| RDI | Required Daily Intake | 所需每日摄入量 |
| RDI | Remote Defect Indicator | 远程缺陷指示器 |
| RDI | Results-Driven Incremental (methodology for project implementation and management) | 成果驱动的增量（项目实施和管理方法） |
| RDI | Remote Detect Indication | 远程检测指示 |
| RDI | RIFF RDIB Device-independent bitmap file | RIFF RDIB设备独立位图文件 |
| RDI | Respiratory Distress Index | 呼吸窘迫指数 |
| RDI | Recently Disembarked Individual (see FOB) | 最近离职的个人（见FOB） |
| RDI | Required Daily Input | 所需每日输入 |
| RDI | Remote Defect Identification (Asynchronous Transfer Mode, ATM) | 远程缺陷识别（异步传输模式，ATM） |
| RDI | recommended dietary intake | 推荐膳食摄入量 |
| RDI | rupture-delivery interval | 破裂输送间隔 |
| RDI | Rural Development Institute | 农村发展研究所 |
| RDI | Research, Development, And Innovation | 研究、开发和创新 |
| RDI | Red Dragon Inn | 红龙客栈 |