| Election Name: | 1954 Democratic Senate primary election in Louisiana |
| Country: | Louisiana |
| Flag Year: | 1912 |
| Type: | Presidential |
| Ongoing: | no |
| Previous Election: | 1948 United States Senate election in Louisiana |
| Previous Year: | 1948 |
| Next Election: | 1960 United States Senate election in Louisiana |
| Next Year: | 1960 |
| Election Date: | July 27, 1954 |
| Nominee1: | Allen Ellender |
| Party1: | Democratic Party (United States) |
| Popular Vote1: | 268,054 |
| Percentage1: | 59.15% |
| Nominee2: | Frank B. Ellis |
| Party2: | Democratic Party (United States) |
| Popular Vote2: | 162,775 |
| Percentage2: | 35.92% |
| Map Size: | 285px |
| U.S. Senator | |
| Before Election: | Allen Ellender |
| Before Party: | Democratic Party (United States) |
| After Election: | Allen Ellender |
| After Party: | Democratic Party (United States) |
The 1954 United States Senate election in Louisiana was held on November 2, 1954. Incumbent Senator Allen J. Ellender was re-elected to a fourth term in office.
On July 27, Ellender won the Democratic primary with 59.15% of the vote. At this time, Louisiana was a one-party state, and the Democratic nomination was tantamount to victory. Ellender won the November general election without an opponent.