The Mechanics' Institute Chess Club is a chess club in San Francisco, California, United States. Hosted at the Mechanics' Institute, it is the oldest continuously operating chess club in the United States. Today the Mechanics' Institute hosts weekly Tuesday evening marathon events, free events, national and international chess tournaments, offers virtual and onsite classes, and provides scholastic chess classes in partnership with local schools. The chess room holds 40 chess sets and 3 computers. Members also have a reciprocal membership with the Marshall Chess Club in Manhattan.