| Election Name: | 1934 Florida United States Senate Democratic primary |
| Country: | Florida |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 1928 United States Senate election in Florida |
| Previous Year: | 1928 |
| Next Election: | 1936 United States Senate special election in Florida (Class 1) |
| Next Year: | 1936 (special) |
| Election Date: | June 26, 1934 |
| Image1: | Park Trammell.jpg |
| Nominee1: | Park Trammell |
| Party1: | Democratic Party (United States) |
| Popular Vote1: | 103,028 |
| Percentage1: | 51.00% |
| Nominee2: | Claude Pepper |
| Party2: | Democratic Party (US) |
| Popular Vote2: | 98,978 |
| Percentage2: | 49.00% |
| Map Size: | 300px |
| U.S. Senator | |
| Before Election: | Park Trammell |
| Before Party: | Democratic Party (US) |
| After Election: | Park Trammell |
| After Party: | Democratic Party (US) |
| Flag Year: | 1900 |
The 1934 United States Senate election in Florida was held on November 6, 1934.
Incumbent Senator Park Trammell ran for a fourth term in office. Trammell failed to achieve a majority in the June 5 primary election, but he narrowly defeated Claude Pepper in a run-off on June 26. Trammell won the November general election without an opponent.
Senator Trammell died during his fourth term in 1936.
Pepper ran for Florida's other Senate seat in 1936 and won without an opponent.