| Abbreviation | Definition |
|---|---|
| RLL | Relay Ladder Logic |
| RLL | Respiration Line Length |
| RLL | Reston Little League |
| RLL | Retention Learning and Leverage |
| RLL | Richmond Little League |
| RLL | Ridgefield Little League |
| RLL | Right Low Lobe |
| RLL | Rockford Little League |
| RLL | Rocklin Little League |
| RLLD | Reduced Latency List Decoding |
| RLLD | Registered Laundry and Linen Director |
| RLLD | Registered Linen Laundry Director |
| RLLD | Residential Landscape Lighting Design |
| RLLD | Right Lobe Living Donor |
| RLLLP | Registered Limited Liability Limited Partnerships |
| RLLR | Repo Linked Lending Rate |
| RLLS | Real Life Living Services |
| RLLS | Runway Lead In Lighting System |
| RLM | Rashtriya Loktantrik Morcha |
| RLM | Real Life Ministries |