| RHU | Registered Health Underwriter | 注册健康保险商 |
| RHU | Radioactive Heater Unit | 放射性加热器单元 |
| RHU | Remote Hydraulic Unit (printed circuit boards cleanliness testing) | 远程液压单元(印刷电路板清洁度测试) |
| RHU | Rehabilitation Hospital Ulm | 乌尔姆康复医院 |
| RHU | Resid Hydrotreating Unit (refinery) | 渣油加氢处理装置(炼油厂) |
| RHU | Radioisotope Heater Units | 放射性同位素加热器单元 |
| RHU | Rotary Hydraulic Unit (ship steering gear) | 旋转液压装置(船舶舵机) |
| RHU | Replacement Holding Unit | 更换保持装置 |
| RHU | Restrictive Housing Unit (Prison) | 限制性住房单元(监狱) |
| RHU | rheumatology | 风湿病学 |
| RHU | radioisotope heater unit | 放射性同位素加热器 |
| RHU | recurrent herpetic ulceration | 复发性疱疹性溃疡 |