MOH or Moh or MoH or similar may refer to:
- Moh, one of the Five Evils of Sikhism
- Moh Chelali, an Algerian/Canadian teacher and politician
- MOH Radiant, a map-making computer program
- Ghim Moh, a district in Singapore
- Móh, the Hungarian name for Mohu village, Şelimbăr Commune, Sibiu County, Romania
- Magnesium hydroxide, Mg(OH)2, called milk of magnesia
- Masters of Hardcore, an indie gabber music label
- Masters of Horror, a one-hour horror anthology TV-series which aired on Showtime
- Medal of Honor, the highest military decoration awarded by the United States government
- Medal of Honor (series), a series of first-person shooter video games set in World War II
- Medical Officer for Health
- Ministry of Health
- Mohs scale of mineral hardness
- Montgomery High School, San Diego
- Museum of Hoaxes
- Music on hold, the practice of playing pre-recorded music in telephony
- On-hold messaging, or messages on hold