- Source: MR1
- 2005 MR1
- 2004 MR1
- 2008 MR1
- Kossuth Rádió
- Stres
- (445974) 2013 BJ18
- Hawker Siddeley Nimrod
- Uranium
- (459462) 2013 AY52
- (439313) 2012 VE82
- Benelli MR1
- MR1
- Major histocompatibility complex, class I-related
- Mucosal-associated invariant T cell
- Hawker Siddeley Nimrod
- Chukavin sniper rifle
- Avro Shackleton
- HAWAII MR1
- Modenas Kriss series
- T cell
MR1 or MR-1 may refer to:
Bristol M.R.1, an experimental biplane
HAWAII MR1, a sea floor imaging system
Major histocompatibility complex, class I-related
Mercury-Redstone 1, an unsuccessful unmanned American space mission
PNKD, or myofibrillogenesis regulator 1
Shewanella oneidensis MR-1, a bacterium
Hadoop architecture Map/Reduce version 1