MCTS
- Canadian Coast Guard
- MCT (disambiguation)
- Mercer County Technical Schools
- Mercer County, New Jersey
- Microsoft Certified Professional
- Middelburg Center for Transatlantic Studies
- Milwaukee County Transit System
- Monte Carlo method
- Monte Carlo tree search
- Multiple Console Time Sharing System
- Munich Center for Technology in Society
- New Jersey
- Research institute
- Technical University of Munich
- United States