The Pujo Committee was a United States congressional subcommittee in 1912–1913 that was formed to investigate the so-called "money trust", a community of Wall Street bankers and financiers that exerted powerful control over the nation's finances. After a resolution introduced by congressman Charles Lindbergh Sr. for a probe on Wall Street power, congressman Arsène Pujo of Louisiana was authorized to form a subcommittee of the House Committee on Banking and Currency. In 1913–1914, the findings inspired public support for ratification of the Sixteenth Amendment that authorized a federal income tax, passage of the Federal Reserve Act, and passage of the Clayton Antitrust Act.
Beginning in the late 1800s, a concern regarding the power of bankers and monopolies began to grow. This led to a breaking point in July 1911, when Congressman Charles August Lindbergh asserted that a banking trust existed within the United States and that it should be investigated. A move to create an investigation was then made on February 7, 1912, when the democratic Money Trust Caucus decided to pass House Resolution 405. Not long after this resolution's passage, amendments followed placing the investigation of the Money Trusts into the hands of then-chairman of the Banking and Currency Committee, Arsène Paulin Pujo of Louisiana. Pujo submitted a resolution, later amended and passed by a vote of 268-8, to establish the footing upon which the rest of the investigation would base itself.
As early as December 12, 1911, the lawyer Samuel Untermyer supported the creation of such an investigation, encouraging Lindbergh to continue fighting for its creation despite early setbacks. Untermyer, a strong proponent of the investigation himself, eventually came to be the committee's counsel. Despite being called the Pujo Committee, in March 1912, approximately a month after it received authorization, Pujo's wife became ill, forcing him to take an indefinite leave of absence from the investigation. His successor was Representative Hubert D. Stephens of Mississippi.