The Republican Study Committee (RSC) is a study group of conservative members of the Republican Party in the United States House of Representatives. As of 2021, the Chairman of the RSC is Representative Jim Banks of Indiana.
Although the primary functions of the RSC vary from year to year, it has always pushed for significant cuts in non-defense spending, spearheaded efforts to pass free trade agreements, advocated socially conservative legislation, and supported the right to keep and bear arms. It has proposed an alternative budget every year since 1995. In 2007, in conjunction with the unveiling of its "Taxpayer Bill of Rights", it presented an alternative budget resolution that claimed would balance the budget within five years without increasing income taxes.
Entering the 117th United States Congress, the RSC is the largest ideological caucus in Congress of either party.