Maghar or Mughar is the Arabic word for cave. It may refer to:
- Maghar (month), the Sikh calendar month
- Maghar, India, a town in Sant Kabir Nagar district in the state of Uttar Pradesh
- Mughar, Iran, a village in Isfahan Province
- Maghar, Israel, an Arab town in northern Israel
- Al-Maghar, a Palestinian village depopulated in 1948
- Battle of Mughar Ridge, in World War I
- Al-Magar, in Saudi Arabia