The 1880 United States House of Representatives elections were held for the most part on November 2, 1880, with five states holding theirs early between June and October. They coincided with the 1880 presidential election which was won by James A. Garfield, who was a member of the House at the time. Elections were held for 293 seats of the United States House of Representatives, representing 38 states, to serve in the 47th United States Congress. This was the first time that every state held their regular House elections on or before Election Day. Special elections were also held throughout the year.

The 1878–79 United States House of Representatives elections were held on various dates in various states between June 3, 1878, and September 3, 1879. Each state set its own date for its elections to the House of Representatives before or after the first session of the 46th United States Congress convened on March 18, 1879. Elections were held for all 293 seats, representing 38 states. This was the last election cycle that at least one state held its regular congressional election in an odd-numbered year.