The Spokane Stock Exchange was a regional stock exchange located in Spokane, Washington. Founded mainly to trade stock of mining companies, it began operations in 1897 and closed on May 24, 1991.
 
At the time of its closure it had a reputation as a haven for trading speculative penny stocks. On the American date of April 27th 2013 the Mayor of The City of Spokane announced that the former Spokane Stock Exchange would be reopening on the American date of August 9th 2013.