Danzan may refer to:
- Danzan-ryū, a jiujitsu school
Danzan () is a Mongolian personal name.
Notable persons with this name include:
;as proper name
- Soliin Danzan (1885–1924), Mongolian revolutionary and political leader,
- Ajvaagiin Danzan (1895–1932), Mongolian revolutionary and political leader.
;as patronymic
- Danzangiin Narantungalag, a Mongolian olympic cross-country ski athlete
- Danzangiin Lundeejantsan, a Mongolian MP and former chairman of the parliament