| KSR | K. S. Rangasamy College of Engineering 
| Others |
| KSR | Kalka Shimla Railways
| Others |
| KSR | Kalka Simla Railway
| Others |
| KSR | Kamikaze Squirrels Rock
| Others |
| KSR | Kampfe Star Razor
| Others |
| KSR | Kayak Storage Rack
| Others |
| KSR | Keane Sense of Rhythm
| Others |
| KSR | Keep Skateistan Rolling
| Others |
| KSR | Kelly Sauder Rupiper
| Others |
| KSR | Ken Snyder Racing
| Others |
| KSR | Kentucky Sports Radio
| Others |
| KSR | Kentucky State Reformatory
| Others |
| KSR | Kerbal S Rockets
| Others |
| KSR | Ketchum Social Responsibility
| Others |
| KSR | Kevin Smith Racing
| Others |
| KSR | Keyboard Send Receive
| Others |
| KSR | Keyboard Send/Receive
| Others |
| KSR | Keyboard Shift Right
| Others |
| KSR | Keystone Sports Review
| Others |
| KSR | Kidnap Sedate Rape
| Others |
| KSR | kinase suppressor of Ras
| Others |
| KSR | Kinetic Sculpture Race
| Others |
| KSR | King Sizar Rules
| Others |
| KSR | Kitty Sleeps Right
| Others |
| KSR | Knowledge and Social Responsibility
| Others |
| KSR | Knowledge Sharing Ritual
| Others |
| KSR | Kocha Se Raya
| Others |
| KSR | Koffler Scientific Reserve (University of Toronto, King Township)
| Others |
| KSR | Kohlman Systems Research
| Others |
| KSR | Korean Society of Radiology
| Others |
| KSR | Korean Society of Rheology
| Others |