Danzan
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