Nishiyama Onsen Gyeongunkan
- Country: Japan
- Type: Travel
- Website: www.keiunkan.co.jp
- Update: 05-02
Nishiyama Onsen Keiunkan (Nishiyama Onsen Keiunkan; Nishiyama Onsen Keiunkan) is the world's oldest hot spring inn, which opened in 705 A.D. It is located in Hayakawa-cho, Yamanashi Prefecture, Japan. The official website of Nishiyama Onsen Keiunkan is available in Simplified Chinese and allows users to search for information on rooms, dining, transportation, and nearby tours.