The 113th United States Congress was a meeting of the legislative branch of the United States federal government, from January 3, 2013, to January 3, 2015, during the fifth and sixth years of Barack Obama's presidency.

It was composed of the United States Senate and the United States House of Representatives based on the results of the 2012 Senate elections and the 2012 House elections.

The seats in the House were apportioned based on the 2010 United States census.

[9] Section contents: Senate: Majority (D), Minority (R) • House: Majority (R), Minority (D) Senators are listed by state, and the numbers refer to their Senate classes, In this Congress, Class 2 meant their term ended with this Congress, requiring re-election in 2014; Class 3 meant their term began in the last Congress, requiring re-election in 2016; and Class 1 meant their term began in this Congress, requiring re-election in 2018.

[Section contents: Senate, House, Joint ] Listed alphabetically by chamber, including Chairperson and Ranking Member.