Ambev, formally Companhia de Bebidas das Américas (official English translation: "Americas' Beverage Company", hence the name "Ambev", formerly styled as "AmBev") is a Brazilian brewing company. It is the biggest brewery in Latin America and the fifth in the world. It was created on July 1, 1999, with the merger of two breweries, Brahma and Antarctica. The merger was approved by the Board of Directors of the Brazilian Administrative Council for Economic Defense (CADE) on March 30, 2000. The headquarters are in São Paulo, Brazil.

Ambev operates in 14 countries in the Americas and its product portfolio includes beers such as Antarctica, Bogotá Beer Company, Brahma, Bohemia, Skol, Stella Artois and soft drinks like Guaraná Antarctica, Soda Antarctica, Sukita and the innovations H2OH! and Guarah. The largest PepsiCo bottler outside United States, it sells and distributes PepsiCo products in Brazil and other Latin American countries, includes Pepsi, Lipton Ice Tea and Gatorade by franchise agreement. According to an analyst at Share Market Updates in October 2016, the company operates "through Latin America North, Latin America South, and Canada segments. It offers beers primarily under the Skol, Brahma, and Antarctica brands. The company also provides carbonated soft drinks, bottled water, isotonic beverages, energy drinks, and ready-to-drink teas under the Guaraná Antarctica, Guaraná Antarctica Black, Gatorade, H2OH!, Lipton Iced Tea, Fusion, Monster, Red Rock, Pepsi-Cola, and Seven Up brands."

In 2004, AmBev merged with Belgian company Interbrew to form InBev. In 2016, InBev merged with American company Anheuser-Busch to form Anheuser-Busch InBev. Ambev S.A. is currently a subsidiary of Interbrew International B.V., which is in turn a subsidiary of Anheuser-Busch InBev SA/NV.