| Election Name: | 1980 United States Senate election in Louisiana |
| Country: | Louisiana |
| Flag Year: | 1912 |
| Type: | Presidential |
| Ongoing: | no |
| Previous Election: | 1974 United States Senate election in Louisiana |
| Previous Year: | 1974 |
| Next Election: | 1986 United States Senate election in Louisiana |
| Next Year: | 1986 |
| Election Date: | September 13, 1980 |
| Image1: | File:Russell B. Long – 1985.jpg |
| Nominee1: | Russell B. Long |
| Party1: | Democratic Party (United States) |
| Popular Vote1: | 484,770 |
| Percentage1: | 57.64% |
| Nominee2: | Woody Jenkins |
| Party2: | Democratic Party (United States) |
| Popular Vote2: | 325,992 |
| Percentage2: | 38.76% |
| Map Size: | 285px |
| U.S. Senator | |
| Before Election: | Russell B. Long |
| Before Party: | Democratic Party (United States) |
| After Election: | Russell B. Long |
| After Party: | Democratic Party (United States) |
The 1980 United States Senate election in Louisiana was held on September 13, 1980. Incumbent Democrat Russell B. Long won the primary with 57.64% of the vote and avoided a runoff.