English abbreviations from jco to jcsaca
- JCO (Comino Heliport)
- JCOC (Judeo-Christian Outreach Center)
- JCOE (Joint Common Operating Environment)
- JCOP (Java Card OpenPlatform)
- JCOT (Joint Collection Observation Team)
- JCP (Java Community Process)
- JCPA (Jennings County Preservation Association)
- JCPES (Joint Center for Political and Economic Studies)
- JCPI (Jurnal Cerita Pendek Indonesia)
- JCPM (Java Child Process Manager)
- JCR (Jacareacanga Airport)
- JCRA (Junction City Rodeo Association)
- JCRI (Joshua Creek Ratepayers, Inc.)
- JCRP (Joint Command Readiness Program)
- JCRS (Japanese Coral Reef Society)
- JCS (Joint Chiefs of Staff)
- JCSA (Junior Civil Servants Association)
- JCS-ACA (Joint Chiefs of Staff Automatic Conference Arranger)