4C
| Acronym | Definition |
|---|---|
| 4C | Cut, Clarity, Color and Carat (how to evaluate a diamond) |
| 4C | Command, Control, Communication and Computer (aircraft) |
| 4C | Community Coordinated Care for Children, Inc. |
| 4C | Correspondence/Counter (police incident code; New Zealand) |
| 4C | Logistics/Staff Transport (police incident code; New Zealand) |
| 4C | Continuously Controlled Chassis Concept (Volvo) |
| 4C | Community Coordinated Child Care Association |