| Election Name: | 1936 United States Senate election in Montana |
| Country: | Montana |
| Flag Year: | 1905 |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 1934 United States Senate special election in Montana |
| Previous Year: | 1934 (special) |
| Next Election: | 1942 United States Senate election in Montana |
| Next Year: | 1942 |
| Election Date: | November 3, 1936 |
| Image1: | M001108.jpg |
| Nominee1: | James E. Murray |
| Party1: | Democratic Party (US) |
| Popular Vote1: | 121,769 |
| Percentage1: | 54.98% |
| Nominee2: | Thomas Larson |
| Party2: | Republican Party (US) |
| Popular Vote2: | 60,038 |
| Percentage2: | 27.11% |
| Image3: | JosephPMonaghan.jpg |
| Party3: | Independent (US) |
| Popular Vote3: | 39,655 |
| Percentage3: | 17.91% |
| Map Size: | 300px |
| U.S. Senator | |
| Before Party: | Democratic Party (US) |
| After Party: | Democratic Party (US) |
The 1930 United States Senate election in Montana took place on November 3, 1936. Incumbent United States Senator James E. Murray, who was first elected to the Senate in a special election in 1934, ran for re-election. He narrowly emerged from a competitive and close Democratic primary, wherein he was challenged by United States Congressman Joseph P. Monaghan, who represented Montana's 1st congressional district. In the general election, Murray was opposed by Thomas O. Larson, a State Senator and the Republican nominee, and Monaghan, who, after losing the primary, ran as an independent candidate. Murray ended up winning a second term, and his first full term, in a landslide, defeating both of his opponents by a comfortable margin.