| SLU | George Charles Airport, St. Lucia, West Indies
| Others |
| SLU | Saint Leo University
| Others |
| SLU | Saint Louis University
| Others |
| SLU | Schedule Loss of Use
| Others |
| SLU | Scheduled Loss of Use
| Others |
| SLU | Secondary Logical Unit
| Others |
| SLU | Serial Line Unit
| Others |
| SLU | Sigma Lambda Upsilon
| Others |
| SLU | Sociedad Limitada Unipersonal
| Others |
| SLU | Society for Learning Unlimited
| Others |
| SLU | Solenoid Lock Up
| Others |
| SLU | South Lake Union
| Others |
| SLU | Special Liaison Units
| Others |
| SLU | Spoken Language Understanding
| Others |
| SLU | Sports and Lifestyle Unlimited
| Others |
| SLU | St Lawrence University
| Others |
| SLU | St. Linus University
| Others |
| SLU | Stairs and Ladders University
| Others |
| SLU | Standard Length Unit
| Others |
| SLU | Starting Line Up
| Others |
| SLU | Still Love You
| Others |
| SLU | Student Leadership University
| Others |
| SLU | Student Led Unit
| Others |
| SLU | Sule Lamido University
| Others |
| SLU | Sveriges Lantbruksuniversitet
| Others |
| SLU | Swagger Like Us
| Others |
| SLU | Swallows Loads UNCONDITIONALLY
| Others |
| SLU | System Link Up
| Others |
| SLU | System Load Unit
| Others |