Unnan is a city located in Shimane Prefecture, Japan, The city belonged to Ohara District which dissolved in 2004 after Unnan was established.
The modern city of Unnan was established on November 1, 2004, from the merger of the towns of Daitō, Kamo and Kisuki, the towns of Mitoya and Kakeya, and the village of Yoshida.
The city of Unnan has 6 wards which used to be the town's of Daitō, Kamo, Kisuki, Mitoya and Kakeya, and the village of Yoshida
As of March 1, 2017, the city had an estimated population of 38,281, and population density of 69 persons per km². The total area is 553.4 km².
Tourist attractions in or near Unnan include Lake Shinji, Ushio Hot Springs, Matsue Shinji Furusato Forest Park, Ohara Dam, Okuizumoyumura Hot Springs, Okuizumotane Natural Museum, Hikawabijin Hot Spring, Akagawahotaru Park, Suga Shrine, Shimaneken Akashimidorigaoka Park, Kisuki Health Forest, Sajiroonsen Choja Hot Spring, Ancient Iron Kayokan, Historical Museum of Iron.
Neighbouring cities includes Izumo, Matsue and Oda, The closest airport to Unnan is Izumo Airport which serves the city of Izumo and the capital city of Matsue.