| Election Name: | 2004 United States Senate election in North Dakota |
| Country: | North Dakota |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 1998 United States Senate election in North Dakota |
| Previous Year: | 1998 |
| Next Election: | 2010 United States Senate election in North Dakota |
| Next Year: | 2010 |
| Election Date: | November 2, 2004 |
| Image1: | File:Byron Dorgan, official photo portrait 2.jpg |
| Nominee1: | Byron Dorgan |
| Party1: | North Dakota Democratic-NPL Party |
| Popular Vote1: | 212,143 |
| Percentage1: | 68.28% |
| Nominee2: | Mike Liffrig |
| Party2: | Republican Party (United States) |
| Popular Vote2: | 98,553 |
| Percentage2: | 31.72% |
| Map Size: | 250px |
| U.S. Senator | |
| Before Election: | Byron Dorgan |
| Before Party: | North Dakota Democratic-NPL Party |
| After Election: | Byron Dorgan |
| After Party: | North Dakota Democratic-NPL Party |
The 2004 United States Senate election in North Dakota was held on November 2, 2004, concurrent with other elections for president, the United States House of Representatives, and various state and local offices. Incumbent Democratic-NPL U.S. Senator Byron Dorgan won re-election to a third term by a landslide margin of 36.6 percentage points,[1] sweeping every county in the state, even while Democratic presidential nominee John Kerry lost the state by 27.3 percentage points. Despite this landslide victory, as of, this is the last time the Democratic-NPL won the Class 3 Senate seat from North Dakota.