No, cursing while driving is not against the law in Montana. This appears to be another internet myth or misattribution from “weird laws” lists, with no supporting statutes in Montana’s vehicle code or disorderly conduct rules.​
Montana Driving Laws
Montana lacks statewide bans on distracted driving, including texting or phone use, making it the only U.S. state without such restrictions as of 2025—local cities like Butte may have ordinances, but nothing targets profanity. General disorderly conduct (MCA 45-8-101) prohibits abusive language likely to provoke violence, but it applies broadly, not specifically to drivers or highways.​
Myth Origins
Similar “no cursing while driving” rules exist elsewhere, like Rockville, Maryland’s ordinance against obscene language near streets audible to pedestrians. Montana’s focus remains on DUI, speeding, and safety campaigns without speech-specific vehicle prohibitions.
SOURCES
[1](https://mvdmt.gov/driving-safety/)
[2](https://living.geico.com/driving/auto/car-safety-insurance/its-the-law-traffic-rules-that-may-surprise-you/)
[3](https://www.murphylawoffice.net/accident-injury-guide/montana-distracted-driving-texting-and-driving-laws/)
[4](https://northernbroadcasting.com/2025/10/17/montana-is-the-last-state-without-a-texting-while-driving-law/)
[5](https://www.trustedchoice.com/distracted-driving/montana-laws/)
