Kellanova (formerly known as the Kellogg Company) is an American multinational food manufacturing company headquartered in Chicago, Illinois, US. Kellogg's produces cereal (outside North America) and convenience foods, including crackers and toaster pastries, and markets their products by several well-known brands including the Kellogg's brand itself, Rice Krispies Treats, Pringles, Eggo, and Cheez-It, along with cereal internationally such as Corn Flakes, Rice Krispies, Frosties and Coco Pops.

Kellogg's products are manufactured and marketed in over 180 countries. Kellogg's largest factory is at Trafford Park in Trafford, Greater Manchester, United Kingdom, which is also the location of its UK headquarters.[4] Other corporate office locations outside of Battle Creek include Chicago, Dublin (European Headquarters), Shanghai, and Querétaro City. Kellogg's held a Royal Warrant from Queen Elizabeth II until her death in 2022.

Kellogg's was split into two companies on October 2, 2023, with WK Kellogg Co owning the North American cereal division, and the existing company being rebranded to Kellanova, owning brands such as Pop-Tarts and Pringles alongside the international cereal division. "Kellogg's" itself became a brand name of both companies.