MHR may refer to:
- the ISO 639 code for Meadow Mari language
- Matheran Hill Railway
- Mid Hants Railway
- Member of the Human Race (M.H.R.), an ironic expression
- Member of the Australian House of Representatives
- Member of the New Zealand House of Representatives, used between the 1860s and 1907
- Montpellier Hérault Rugby, a prominent French rugby union club
- Muswell Hill Railway
- Sacramento Mather Airport
- Mediterranean Historical Review, academic journal
- MHR (formerly MidlandHR), a UK business
- Mike Harmon Racing
- MHR Development, LLC
- Monster Hunter Rise