The Pacific Exchange was a regional stock exchange in California, from 1956 to 2006. Its main exchange floor and building were in San Francisco, California, with a branch building in Los Angeles, California.

In 1882, the San Francisco Stock and Bond Exchange was founded; and in 1899 the Los Angeles Oil Exchange was founded. In 1956, these two exchanges merged to create the Pacific Coast Stock Exchange, with trading floors maintained in both cities.

In 1973, it was renamed the Pacific Stock Exchange. The Pacific Exchange was bought by Archipelago Holdings in 2005, which merged with the New York Stock Exchange in 2006. Pacific Exchange equities and options trading now takes place exclusively through the NYSE Arca platform.