| Acronym | Definition |
|---|
| KLS | Kimora Lee Simmons (women's apparel; beauty supplies) |
| KLS | Key List Server |
| KLS | Kenco Logistic Services (est. 1950) |
| KLS | KLM Luchtvaartschool (KLM Flight Academy; Eelde, The Netherlands) |
| KLS | Kinesiology and Leisure Science (University of Hawaii at Manoa) |
| KLS | Key Largo School (Florida) |
| KLS | Kuala Lumpur Sentral (commercial and transportation area; Malaysia) |
| KLS | Kaba Lodging Systems (global electronic lock provider) |
| KLS | Kleine-Levine Syndrome (neurological disorder) |
| KLS | Kingston Liberal Synagogue (UK) |
| KLS | Kalamazoo Landscape Supplies (Kalamazoo, MI) |
| KLS | Kansas Light Source (laser facility) |
| KLS | Kustom Life Style (French custom car club; est. 2006) |
| KLS | Kingston Language Scheme (UK) |
| KLS | Known-Lifetime Space (programming) |
| KLS | Kit Letter Designator |
| KLS | Kernel Lockdown Scripts |
| KLS | Kachroo Legal Services (Cambridge, MA) |
| KLS | Kidney Learning Solutions (National Kidney Foundation) |