2018 United States House of Representatives election in Montana

The 2018 United States House of Representatives election in Montana was held on November 6, 2018, to elect the U.S. representative from Montana's at-large congressional district. The election coincided with other elections to the House of Representatives, elections to the United States Senate, and various state and local elections.

Declared

 * Greg Gianforte, incumbent U.S. Representative

Declared

 * John Heenan, attorney
 * Grant Kier, former executive director of the Five Valleys Land Trust
 * Jared Pettinato, attorney
 * Kathleen Williams, former state representative

Withdrew

 * Lynda Moss, former state senator (but remained on the ballot)

Declared

 * Elinor Swanson, attorney

Debates

 * Complete video of debate, September 29, 2018
 * Complete video of debate, October 6, 2018

Results
Gianforte defeated Kathleen Williams on November 6, 2018.