Coca-Cola, or Coke, is a carbonated soft drink manufactured by the Coca-Cola Company. In 2013, Coke products were sold in over 200 countries worldwide, with consumers drinking more than 1.8 billion company beverage servings each day.^[1] Coca-Cola ranked No. 87 in the 2018 Fortune 500 list of the largest United States corporations by total revenue.^[2] Based on Interbrand's "best global brand" study of 2020, Coca-Cola was the world's sixth most valuable brand.^[3]

Originally marketed as a temperance drink and intended as a patent medicine, it was invented in the late 19th century by John Stith Pemberton in Atlanta, Georgia. In 1888, Pemberton sold Coca-Cola's ownership rights to Asa Griggs Candler, a businessman, whose marketing tactics led Coca-Cola to its dominance of the global soft-drink market throughout the 20th and 21st century.^[4] The drink's name refers to two of its original ingredients: coca leaves and kola nuts (a source of caffeine).^[5] The current formula of Coca-Cola remains a closely guarded trade secret; however, a variety of reported recipes and experimental recreations have been published. The secrecy around the formula has been used by Coca-Cola in its marketing as only a handful of anonymous employees know the formula.^[6] The drink has inspired imitators and created a whole classification of soft drink: colas.