| RLB | restricted license bank | 有限制牌照银行 |
| RLB | Right Linebacker (pro football) | 右后卫（职业足球） |
| RLB | Rachel Leyco Band | Rachel Leyco乐队 |
| RLB | Right lateral bending | 右侧弯曲 |
| RLB | Radiant Light Broadcasting | 辐射光广播 |
| RLB | Wavefront raster image file Bitmap graphics | 波前光栅图像文件位图图形 |
| RLB | Harvard Graphics for Windows Data | Harvard Graphics for Windows数据 |
| RLB | Rendered Latex Bitmap | 渲染乳胶位图 |
| RLB | Regulated Lag Ballast | 调节滞后镇流器 |
| RLB | Residential List Broker | 住宅清单经纪人 |
| RLB | Rated Load Break | 额定负载断路器 |