MHJ
MHJ stands for:
- Mannheim main station (IATA code)
- MHJ 4 : Name of a mainline steam locomotive of the Swedish State Railways for the Mjölby – Hästholmen Järnväg line , see SJ D (1874)
- Marine Hitler Youth
- Medical history journal , a periodical published since 1966 on behalf of the Commission for the History of Medicine and Natural Sciences, Academy of Sciences and Literature in Mainz
