Chahar or Chakhar may refer to:
Sino-Mongolian uses
- Chahar Mongols, a Mongol tribe
- Chakhar Mongolian (Chakhar), a Mongolian dialect spoken by the Chahar tribe
- Chahar Province, a former province of China named after them
- Chahar Right Front Banner, in Inner Mongolia, China
- Chahar Right Middle Banner, in Inner Mongolia, China
- Chahar Right Back Banner, in Inner Mongolia, China
Afghan uses
- Aymāq, a Persian-speaking nomadic people of Afghanistan originally known as chahar
- Chahar Bolak District, a district in Afghanistan
- Khani Chahar Bagh District, a district in Afghanistan
Iranian/Persian uses
- Charbagh, a style of Persian garden
- Charbagh, Isfahan ("Four Gardens"), an avenue in Isfahan, Iran
- Chaharbagh School, a 16th-17th century cultural complex in Isfahan, Iran
- Chaharmahal and Bakhtiari Province, a province of Iran
Other uses
- Çahar (Chakhar), Azerbaijan, a village