112th United States Congress

The 112th United States Congress was a meeting of the legislative branch of the United States federal government, from January 3, 2011, until January 3, 2013. It convened in Washington, D.C., on January 3, 2011, and ended on January 3, 2013, 17 days before the end of the presidential term to which Barack Obama was elected in 2008. Senators elected to regular terms in 2006 completed those terms in this Congress. This Congress included the last House of Representatives elected from congressional districts that were apportioned based on the 2000 census.

In the 2010 midterm elections, the Republican Party won the majority in the House of Representatives. While the Democrats kept their Senate majority, it was reduced from the previous Congress.

This was the first Congress in which the House and Senate were controlled by different parties since the 107th Congress (2001–2003), and the first Congress to begin that way since the 99th Congress (1985–1987). It was also the first Congress since the 36th Congress, over 150 years, in which the Republican Party held the House but not the Senate. In this Congress, the House of Representatives had the largest number of Republican members, 242, since the 80th Congress (1947–1949). This was the only Congress between the 79th (1945–1947) and the 117th (2021–2023) that did not include a member of the Kennedy family.

As of 2022, this is the most recent Congress in which Democrats held a Senate seat in Nebraska or a House seat in Arkansas, the last in which Republicans held both Senate seats in Maine, and the last in which Democrats did not hold all seats in Connecticut.