# 1984 United States Senate election in Louisiana

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The primary election for the 1984 United States Senate election in Louisiana was held on September 29, 1984.
Incumbent Democratic Senator J. Bennett Johnston won the election with 85% of the vote and was declared elected by a majority, dispelling the need for a general election in November. This was despite Republican president Ronald Reagan carrying the state with more than 60% of the vote in the concurrent presidential election.

## Candidates
### Democratic Party

* J. Bennett Johnston, incumbent Senator

### Republican Party

* Larry Napoleon "Boogaloo" Cooper, former President of the NAACP Youth Council and candidate for Lt. Governor in 1983
* Robert M. Ross, perennial candidate

## Results
### Primary election

1984 U.S. Senate primary :
| Party | Party | Candidate | Votes | % |
| | Democratic | J. Bennett Johnston (incumbent) | 838,181 | 85.75% |
| | Republican | Robert M. Ross | 86,546 | 8.85% |
| | Republican | Larry Napoleon "Boogaloo" Cooper | 52,746 | 5.4% |
| Total votes | Total votes | Total votes | 977,473 | 100% |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

### General election

Under Section 511 of Title 18 of the Louisiana Revised Statutes, a candidate who received a majority of the votes in the Primary Election was declared elected. Johnston did not appear on the General Election ballot.