2009 in the United States

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See also:	History of the United States (2008–present) Timeline of United States history (1990–2009) List of years in the United States

Events from the year 2009 in the United States.

The inauguration of Barack Obama as the president, occurred on January 20. The nation, still recovering from the 2007–2008 financial crisis, received various economic stimuli through the American Recovery and Reinvestment Act and similar legislation, which most notably gave Americans tax credits. Though the recession officially ended in June of this year, it did not come without this year's share of bankruptcies and dissolutions, most notably Circuit City and the Chicago Cubs.

The year also saw the roots of various movements which would come to define the next ten years, including the Tea Party movement, and the beginning of the legalization of same-sex marriage. The Democratic Party gained a filibuster-proof supermajority of seats within the Senate, enabling the passage of the Affordable Care Act the following year. The year's second G20 summit was also held in the city of Pittsburgh. Culturally, the nation was wracked by the death of Michael Jackson, which triggered an immense response around the world and caused some websites to crash due to an overflow of traffic.