| Acronym | Definition |
|---|
| KCS | Kansas City Southern (railroad) |
| KCS | Knox County Schools (Knoxville, Tennessee) |
| KCS | King's College School (UK) |
| KCS | Keratoconjunctivitis Sicca (aka Dry Eye Syndrome) |
| KCS | Kiva C++ Server |
| KCS | Keyboard Controller Style |
| KCS | Kenton City Schools (Kenton, OH) |
| KCS | Kansas City Star (newspaper) |
| KCS | Knowledge-Centered Support |
| KCS | Knoxville Christian School (Knoxville, TN) |
| KCS | Klm Catering Services Schiphol (Netherlands) |
| KCS | Kokusai Cable Ship Co., Ltd. (Japan) |
| KCS | Kingston Christian School (Canada) |
| KCS | Kalahari Conservation Society |
| KCS | Korean Chemical Society |
| KCS | Kenny-Caffey Syndrome |
| KCS | King Cobb Steelie (band) |
| KCS | Krungthai Computer Services (Thailand) |
| KCS | King's Cross Station (London, UK) |
| KCS | Kill, Cut, Scalp (Soulfly song) |
| KCS | Keswick Christian School (Saint Petersburg, Florida) |
| KCS | Killed Carbon Steel |
| KCS | Slovakia Koruna (national currency) |
| KCS | Kylocycles per Second |
| KCS | Known or Certified Concentration of Standard (analytical chemistry) |
| KCS | Kills Come Swiftly (Halo 3 clan) |
| KCS | Kildeer Countryside School (Long Grove, IL, USA) |
| KCS | Killer Clown Society (gaming clan) |
| KCS | Kiangan Central School (Philippines) |
| KCS | Kiem Tra Chat Luong San Pham (Vietnamese: Quality Control) |