Alan George "A. G." Lafley (born June 13, 1947) is an American businessman who led consumer goods maker Procter & Gamble (P&G) for two separate stints, from 2000 to 2010 and again from 2013 to 2015, during which he served as chairman, president and CEO. In 2015, he stepped down as CEO to become executive chairman of P&G, eventually retiring in June 2016.

Prior to rejoining P&G in 2013, Lafley consulted on business and innovation strategy, advising on CEO succession and executive leadership development, and coaching experienced, new, and potential CEOs.

Lafley earned an A.B. from Hamilton College in 1969. In 1970, after beginning a doctoral program at the University of Virginia, he took a commission with the U.S. Navy as a supply officer during the Vietnam War stationed in Japan. Afterwards, he studied at Harvard Business School, receiving his M.B.A. in 1977. He joined P&G upon his graduation.