Ralston Purina
| NYSE: RP | |
| Industry | Food, pet food, animal feeds |
| Founded | January 8, 1894 (as Purina Mills) |
| Founder | William H. Danforth |
| Defunct | December 12, 2001 |
| Fate | Acquired by Nestlé; merged into Nestlé's pet food business |
| Successor | Nestlé Purina PetCare |
| Headquarters | St Louis, Missouri , U.S. |
| Products | Dog food, cat food, animal health products, breakfast cereal, crisp bread |
Ralston Purina Company was an American conglomerate, based in St. Louis, Missouri, with substantial holdings in animal feed, food, pet food, consumer products, and entertainment. On December 12, 2001, it merged with Swiss food-giant Nestlé's Friskies division to form Nestlé Purina PetCare.