| KSC | John F. Kennedy Space Center 
| Others |
| KSC | Kagoshima Space Center
| Others |
| KSC | Kagyu Sukha Choling
| Others |
| KSC | Kanata Sailing Club
| Others |
| KSC | Karlsruhe Sport Club
| Others |
| KSC | Kaspersky Secure Connection
| Others |
| KSC | Kaspersky Security Center
| Others |
| KSC | Kaspersky Security Cloud
| Others |
| KSC | Keene State College
| Others |
| KSC | Keeper of Sacred Chao
| Others |
| KSC | Keeper of the Sacred Chao
| Others |
| KSC | Kelab Shell Cyberjaya
| Others |
| KSC | Kennedy Space Center
| Others |
| KSC | Kenny Special Club
| Others |
| KSC | Kent Student Center
| Others |
| KSC | Kentucky Space Chicken
| Others |
| KSC | Kerbal Space Center
| Others |
| KSC | Khouzestan Steel Company
| Others |
| KSC | Kia Sportage Club
| Others |
| KSC | Kingwood Strength and Conditioning
| Others |
| KSC | Kirby Student Center
| Others |
| KSC | Knit Stitch Click
| Others |
| KSC | Knowledge Sharing and Construction
| Others |
| KSC | Knowledge Sharing Center
| Others |
| KSC | Knowledge Systems Corporation
| Others |
| KSC | Known Switch Condition
| Others |
| KSC | Known Switch Conditions
| Others |
| KSC | Korg Sample Collection
| Others |
| KSC | Kosice, Slovakia
| Others |
| KSC | Kraftwerks Service Cottbus
| Others |
| KSC | Kurdistan Save the Children
| Others |
| KSC | Kurtis Sports Car
| Others |
| KSC | Kuwait Shareholding Company
| Others |
| KSC | Kuwait Stock Exchange
| Others |