Steak 'n Shake

Steak 'n Shake Operations, Inc., doing business as Steak 'n Shake, is an American fast food chain concentrated primarily in the Midwestern United States along with locations in the rest of the country plus locations in Western Europe. The company is headquartered in Indianapolis, Indiana, and is a wholly owned subsidiary of Biglari Holdings. As of 2018, 628 Steak 'n Shake restaurants were in operation; of those 414 were corporate-owned, and 214 franchised. The company has since attempted to convert to a fully franchised model.

Restaurant locations have drive-thru, and indoors fast-food dining experience. In 2021, the company had 536 locations, but the number had dropped to 493 by March 31, 2023, according to Biglari Holdings; not all of those were in operation at that time. The company has shifted away from full-service restaurants toward a drive-thru model and kiosk service.

By the end of 2024, the company had 426 company-operated and franchise locations in 26 states plus the District of Columbia. The company had also retreated from many of the states that it had expanded into during the first two decades of the 21st century.

The menu features primarily burgers and hand-dipped milkshakes; other entrees, side items, and drinks are also available. The corporation's slogan, "Famous for Steakburgers", refers to its most prominent food item, the Steakburger. The "steak" in the restaurant name comes from the menu item.