| Election Name: | 1930 United States Senate election in Montana |
| Country: | Montana |
| Flag Year: | 1905 |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 1924 United States Senate election in Montana |
| Previous Year: | 1924 |
| Next Election: | 1934 United States Senate special election in Montana |
| Next Year: | 1934 (special) |
| Election Date: | November 4, 1930 |
| Nominee1: | Thomas J. Walsh |
| Party1: | Democratic Party (United States) |
| Popular Vote1: | 106,274 |
| Percentage1: | 60.33% |
| Nominee2: | Albert J. Galen |
| Party2: | Republican Party (United States) |
| Popular Vote2: | 66,724 |
| Percentage2: | 37.88% |
| Map Size: | 300px |
| U.S. Senator | |
| Before Election: | Thomas J. Walsh |
| Before Party: | Democratic Party (United States) |
| After Election: | Thomas J. Walsh |
| After Party: | Democratic Party (United States) |
The 1930 United States Senate election in Montana took place on November 4, 1930. Incumbent United States Senator Thomas J. Walsh, who was first elected to the Senate in 1912, and re-elected in 1918 and 1924, ran for re-election. He won the Democratic primary unopposed, and faced Montana Supreme Court Associate Justice Albert J. Galen, the Republican nominee, and several independent opponents in the general election. Ultimately, Walsh defeated his opponents in a landslide and won his fourth and final term in the Senate.