| Acronym | Definition |
|---|
| OTLC➣On-Load Tap Changer (electrical appliance) |
| OTLC➣Ottawa Technical Learning Centre (Ottawa, Canada) |
| OTLC➣Object Technology Licensing Corporation (California) |
| OTLC➣Online Teaching and Learning Certificate (various organizations) |
| OTLC➣Out to Lunch Creations |
| OTLC➣Olefin Traffic Lane Cleaner |
| OTLC➣Open Tubular Liquid Chromatography |
| OTLC➣On the Level Construction (various locations) |
| OTLC➣Optimum Total Liquid Content at Compaction (asphalt) |