| Acronym | Meaning |
| CL | Candidate List |
| CL | Capabilities Select |
| CL | Capture Latch |
| CL | Carrier Landing |
| CL | Center of Lift |
| CL | Chemical Laser |
| CL | Clear Job Indicator |
| CL | Clearance |
| CL | Closed Loop Control Logic |
| CL | Collaborator |
| CL | Combat Load |
| CL | Commonality List (NASA) |
| CL | Compartmentalized Level |
| CL | Compliance Level |
| CL | Components List |
| CL | Configured Load |
| CL | Confrontation Line |
| CL | Continuous Learning |
| CL | Contract Labor |
| CL | Contract Linguist (US government) |
| CL | Contractor Leased |
| CL | Control Logic |
| CL | Coordination Line |
| CL | County Law |
| CL | Course Line |
| CL | Court Leave |
| CL | Crew Leader |
| CL | Customs Law |
| CL | Lift Co-Efficient (aircraft) |
| CL | Light Cruiser (Cruiser-Light) |