General election
- Aaron Flint Republican
radio host
- Albert Olszewski Republican
former state senator (2017–2021), Flathead County Republican Central Committee chairman, candidate for U.S. Senate in 2018, governor in 2020, and this seat in 2022
- Christi Jacobsen Republican
Secretary of State of Montana (2021–present)
- Denny Rehberg Republican
former U.S. representative (2001–2013)
- Matt Regier Republican
president of the Montana Senate (2025–present) from the 5th district (2025–present)
- Ray Curtis Republican
educator
- Ryan Zinke Republican
incumbent U.S. representative (endorsed Flint)
- Sam Forstag Democrat
smokejumper and nephew of U.S. Representative Susie Lee
- Kimberly Persico Independent
(Independent)
- Nick Sheedy Independent
(Libertarian)
Democratic primary
smokejumper and nephew of U.S. Representative Susie Lee
rancher and candidate for in 2020
education consultant
author, former vice president of sales at Kimber Manufacturing, and nominee for governor in 2024
Republican primary
radio host
former state senator (2017–2021), Flathead County Republican Central Committee chairman, candidate for U.S. Senate in 2018, governor in 2020, and this seat in 2022
Secretary of State of Montana (2021–present)
former U.S. representative (2001–2013)
president of the Montana Senate (2025–present) from the 5th district (2025–present)
educator
incumbent U.S. representative (endorsed Flint)