Greg Gianforte Republican Matt Rosendale Republican The 2020 United States House of Representatives election in Montana was held on November 3, 2020, to elect the U.S. representative from Montana's at-large congressional district.

The incumbent, Republican Greg Gianforte, who was reelected with 50.9% of the vote in 2018,[1] declined to run for reelection and instead ran successfully for Governor of Montana, after having lost the 2016 election to incumbent Democrat Steve Bullock.

[2] As the Green Party was removed from the ballot, this was the first time since 1988 that there were no non-Republican or Democratic candidates running for either United States House of Representatives or United States Senate in Montana.

State politicians Local politicians Individuals Local unions Organizations Individuals Organizations Polls with a sample size of <100 have their sample size entries marked in red to indicate a lack of reliability.

with Joe Dooling (R), John Evankovich (R), Timothy Johnson (R), Corey Stapleton (R) and Tom Winter (D) with Joe Dooling (R), Timothy Johnson (R), Matt Rains (D), Corey Stapleton (R) and Tom Winter (D) Partisan clients Official campaign websites