was a Japanese era name (年号, nengō, lit. year name) after Ken'ei and before Kenryaku. This period spanned the years from October 1207 through March 1211. The reigning emperors were and .
was a after Ten'en and before Tengen. This period spanned the years from July 976 through November 978. The reigning emperor was .
Jōgen may refer to:
- Jōgen (Heian period) , Japanese era from 976 to 978
- Jōgen (Kamakura period) , Japanese era from 1207 to 1211