The Shimane Nuclear Power Plant (島根原子力発電所, Shimane genshiryoku hatsudensho, Shimane NPP) is a nuclear power plant located in the town of Kashima-chou in the city of Matsue in Shimane Prefecture.

It is owned and operated by the Chūgoku Electric Power Company.

However, on 31 March 2005, the area of Kashima-chou merged with Matsue (it was formerly in the Yatsuka District), making it exactly the same city as the prefecture capital.

New Scientist magazine has reported that, in June 2006, a previously unknown geological fault was identified close to the Shimane Nuclear Power Plant, but it is expected to be years before the plant is strengthened.

[1] The power plant covers an area of 1.92 square kilometres (470 acres).