CMTL
| Acronym | Definition |
|---|---|
| CMTL | Computer Memory Test Labs (est. 1996; computer testing services; Irvine, CA) |
| CMTL | Cambridge Materials Testing Limited (Cambridge, Ontario, Canada) |
| CMTL | Chief Military Training Leader |
| CMTL | Chinese Maritime Transport Ltd. (Taiwan) |
| CMTL | Center for Mathematics, Teaching and Learning |
| CMTL | Computer Models of Thought and Language (psychology books) |
| CMTL | Construction Materials Testing Laboratory (engineering; various locations) |