Stephen Kevin Bannon (born November 27, 1953) is an American media executive, political strategist, and former investment banker. He served as the White House's chief strategist in the administration of U.S. President Donald Trump during the first seven months of Trump's term. He is a former executive chairman of Breitbart News and previously served on the board of the now-defunct data-analytics firm Cambridge Analytica.

In August 2020, Bannon and three others were arrested and charged with conspiracy to commit mail fraud and money laundering in connection with the We Build the Wall campaign. The defendants allegedly enriched themselves, despite promising that all contributions would go to building a wall. Bannon pleaded not guilty and was pardoned by Trump before his trial date.