MRL may refer to:
- Montana Rail Link, a US railroad
- Magnetic Reference Laboratory, an American company that makes and sells Calibration Tapes
- Official Monster Raving Loony Party, a UK political party
- Merck Research Laboratories, an American pharmaceutical company
- Manufacturing Readiness Level, a measure of the maturity of the manufacturing readiness of an object of technology related to Technology Readiness Level (TRL)
- Maximum Residue Limit, usually for pesticides
- Media resource locator, a URI for multimedia
- Multiple rocket launcher
- Murphy Roths Large, a strain of mouse, having remarkable tissue regeneration abilities
- Machine room-less elevators
|This disambiguation page lists articles associated with the title MRL.
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