| Acronym | Definition |
|---|
| KCO | Kenya Country Office (conservation) |
| KCO | Kunst en Cultuur Overijssel (Dutch: Arts and Culture Overijssel; Overijssel, Netherlands) |
| KCO | Kevin Critchley Outfit (band) |
| KCO | Klaipeda Chamber Orchestra (Lithuania) |
| KCO | Keiko Yamada (Japanese pop singer) |
| KCO | Kenyan Community in Ontario (Canada) |
| KCO | Kids Camp Out (Uniting Church; Australia) |
| KCO | Key Controls Over Operations |
| KCO | Kitchener, Central Ontario (call letters) |
| KCO | Knickerbocker Chamber Orchestra (New York, NY) |
| KCO | Keene Chamber Orchestra (Sullivan, NH) |
| KCO | Koninklijk Concertgebouworkes (Royal Concertgebouw Orchestra) |
| KCO | Kojika and Komiko (manga) |