Lloyd Craig Blankfein is an American investment banker who has served as senior chairman of Goldman Sachs since 2019, and chairman and chief executive from 2006 until the end of 2018. Before leading Goldman Sachs, he was the company's president and chief operating officer (COO) from 2004 to 2006, serving under then-CEO Henry Paulson.

Born and raised in New York City, Blankfein attended Harvard University for his undergraduate and law school studies before briefly entering private law practice. After leading Goldman's currency and commodities divisions from 1994 to 1997 he served as the president and chief operating officer from 2004 to his ascension to chief executive. Almost immediately after Blankfein assumed the head of the company, the financial crisis of 2007-08 hit the banking industry.

Blankfein was twice named one of the most influential people in the world by Time magazine and won the Financial Times Person of the Year award in 2009.