CKE Restaurants Holdings, Inc. (an acronym for Carl Karcher Enterprises) is an American fast food corporation and is the parent organization for the Carl's Jr., Hardee's, Green Burrito, and Red Burrito brands. CKE Restaurants is headquartered in Franklin, Tennessee.

In October 2020, CKE Restaurants operated or franchised to locations in 44 US states and 43 foreign countries and US territories.

In 1941, Carl's Jr. founder, Carl Karcher, entered the fast food market by purchasing a hot dog cart in Los Angeles.

In 1956, Karcher opened the first Carl's Jr. restaurants in Anaheim and Brea, California.

In 1996, CKE acquired Rally's and Taco Bueno. The plan was to rebranded Rally's into the Carl's Jr. imaging, though they later determined later in the year that Rally's was not suitable.

In 1997, CKE acquired Hardee's from Canadian-based company Imasco. By 1998, CKE rebranded Hardee's into the Carl's Jr. imaging including the Happy Star logo and parts of its lunch menu but kept the Hardee's name and left the breakfast menu intact.

Rally's was later sold to Checkers in 1999. Checkers and Rally's then followed a similar regionalization concept as CKE has for its Carl's Jr. and Hardee's chains. Taco Bueno was sold in 2001 when private investment group Jacobson Partners purchased the chain for US$72.5 million dollars to help aid CKE Restaurants in a debt battle.

In September 2000, Andrew Puzder was named CEO. Prior to becoming the CEO, Puzder had been the personal attorney to the founder Karcher since 1986.