LCT
- Civil time
- LCT resort
- Labour Congress of Thailand
- Lake Champlain Transportation Company
- Landing craft tank
- Lane Cove Tunnel
- Language and Communication Technologies
- Ligue Communiste des Travailleurs
- Limit comparison test
- Linear canonical transformation
- Link/cut tree
- List of United States Navy amphibious warfare ships
- Long-chain triglyceride
- Long-range optical wireless communication
- Lorain County Transit
- Low-carbon technology (disambiguation)
- Lower consolute temperature
- Luxury Car Tax
- Lysosomal cystine transporter family
- TAR Aerolineas