LTC
- Coordinated Lunar Time
- Josy Joseph
- Lakeshore Technical College
- Latino Theater Company
- Licensed Trade Charity
- Lieutenant colonel (United States)
- Light timber construction schools
- Linear Technology
- Linear timecode
- Linux Technology Center
- Litecoin
- London Transit Commission
- Long-term care
- Losing-Trick Count
- Lower Thames Crossing
- Middle Chinese
- Tap changer