Seidan, Hyōgo
Seidan was a town located in Mihara District, Hyōgo Prefecture, Japan.
As of 2003, the town had an estimated population of 12,004 and a density of 214.40 persons per km². The total area was 55.99 km².
On January 11, 2005, Seidan, along with the towns of Mihara, Midori and Nandan, was merged to create the city of Minamiawaji.
