MRL may refer to:
- Magnetic Reference Laboratory, an American company that makes and sells Calibration Tapes
- Margaret Ruthven Lang(1867–1972), American composer
- Mineral Resources Limited, Australian mining company
- Official Monster Raving Loony Party, a UK political party
- Montana Rail Link, a US railroad
- Merck Research Laboratories, an American pharmaceutical company
Technology related:
- 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, a trading standard, usually for pesticide residues on foodstuffs
- 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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