MLD

MLD may refer to:

Education

• Master of Leadership Development

Medicine

• Manual lymphatic drainage
• Masking level difference, a threshold in hearing
• Median lethal dose
• Metachromatic leukodystrophy, a rare neurometabolic genetic condition
• Moderate learning disability

Science and technology

• Maritime Laser Demonstrator, an on-board laser defense system developed by Northrop Grumman
• Million liters per day, a measurement of liquid volume flow or handling capacity
• Mixed Layer Depth, a concept in hydrography
• Multicast Listener Discovery, a computer networking concept
• Multiple LAN distribution, a computer networking concept
• Mean Lethal Dose, a toxicological measurement for the toxicity of a substance

Other

• ICAO airline designator of Air Moldova
• Maniac Latin Disciples, a street gang
• The Dutch abbreviation of Marine Luchtvaart Dienst, the Dutch Naval Aviation Service
• Master List of Documents, a record-keeping term
• Mutually locally derivable, a mathematical property of aperiodic tile sets
• Money Laundering Directive, an EU directive on the prevention of the use of the financial system for the purpose of money laundering and terrorist financing