| MTR | Magnetic Tape Recorder 
| Others |
| MTR | Magnetic Tape Recording
| Others |
| MTR | Magnetization Transfer Ratio
| Others |
| MTR | Main Tap Ratio
| Others |
| MTR | Major Transportation Route
| Others |
| MTR | Management Traffic Regulator
| Others |
| MTR | Manually Test a Response
| Others |
| MTR | Marginal Tax Rate
| Others |
| MTR | Marginal Tax Revenue
| Others |
| MTR | Mass Text Replacer
| Others |
| MTR | Mass Transit Railway
| Others |
| MTR | Masses, Tenderness, Rebound
| Others |
| MTR | Master Track Records
| Others |
| MTR | Master Tracking Reference
| Others |
| MTR | Match Target Rifle
| Others |
| MTR | Material Test Report
| Others |
| MTR | Materials Technology Research
| Others |
| MTR | Matt's TraceRoute
| Others |
| MTR | Matt's Traceroute Rar
| Others |
| MTR | Mavalli Tiffin Room
| Others |
| MTR | Mavalli Tiffin Rooms
| Others |
| MTR | Maximaal Toelaatbaar Risiconiveau (Dutch: Maximum Admissible Risk)
| Others |
| MTR | Maximal Thermal Retention
| Others |
| MTR | Maximum Traction / Reinforced tire
| Others |
| MTR | Maximum Traction Radials
| Others |
| MTR | Maximum Training Resistance
| Others |
| MTR | Mechanized Time Reporting
| Others |
| MTR | Media Transfer Rate
| Others |
| MTR | Membrane Technology and Research
| Others |
| MTR | Memphis Teacher Residency
| Others |
| MTR | Mentally Totally Retarded
| Others |
| MTR | Mercury Test Repository
| Others |
| MTR | Microsoft Teams Rooms
| Others |
| MTR | Mid Term Rehabilitation
| Others |
| MTR | Mid Term Review
| Others |
| MTR | Mid-Term Review
| Others |
| MTR | Military Technical Revolution
| Others |
| MTR | Military Training Route
| Others |
| MTR | Military Training Routes
| Others |
| MTR | Mill Test Report
| Others |
| MTR | Mill Test Repot
| Others |
| MTR | Miniature Temperature Recorder
| Others |
| MTR | Minimum Technical Requirements
| Others |
| MTR | Minimum Time Requirement
| Others |
| MTR | Minimum Turning Radius
| Others |
| MTR | Minnesota Trail Riders
| Others |
| MTR | Mobis Turkey
| Others |
| MTR | Modular Tray Rack
| Others |
| MTR | Monteria, Colombia
| Others |
| MTR | Monthly Tracked Revenue
| Others |
| MTR | Monthly Traffic Ratio
| Others |
| MTR | Monthly Treasurer's Report
| Others |
| MTR | Montour Railroad (Youngstown and Southern Railway)
| Others |
| MTR | Moon Town Records
| Others |
| MTR | Mortality Time Recognition
| Others |
| MTR | Mortar
| Others |
| MTR | Motion To Reconsider
| Others |
| MTR | Motor Technical Reference
| Others |
| MTR | Motor Transport Regiment
| Others |
| MTR | Motorized
| Others |
| MTR | Motorways Traffic Regulations
| Others |
| MTR | Multi-Track Recorder
| Others |
| MTR | Multiple Transferable Resistance
| Others |
| MTR | Multiple Tread Radius
| Others |
| MTR | Museum of Television and Radio
| Others |
| MTR | Musical Theatre Repertory
| Others |
| MTR | Mutual Trust Respect
| Others |
| MTR | My Trace Route
| Others |
| MTR | My traceroute
| Others |
| MTR | The Mavalli Tiffin Room
| Others |
| MTR | Youngstown and Southern Railway Company
| Others |