Diet Coke is a sugar-free and low-calorie soft drink produced and distributed by the Coca-Cola Company. It contains artificial sweeteners instead of sugar. Unveiled on July 8, 1982, and introduced in the United States one month later, it was the first new brand since Coca-Cola's creation in 1886 to use the Coca-Cola trademark. The product quickly overtook the company's existing diet cola, Tab, in sales.

The Coca-Cola Company is an American multinational corporation founded in 1892. It produces Coca-Cola. The drink industry company also manufactures, sells, and markets other non-alcoholic beverage concentrates and syrups, and alcoholic beverages. The company's stock is listed on the NYSE and is part of the DJIA and the S&P 500 and S&P 100 indexes.