| Election Name: | 1998 United States Senate election in Florida |
| Country: | Florida |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 1992 United States Senate election in Florida |
| Previous Year: | 1992 |
| Next Election: | 2004 United States Senate election in Florida |
| Next Year: | 2004 |
| Election Date: | November 3, 1998 |
| Image1: | BobGrahamCropped.jpg |
| Nominee1: | Bob Graham |
| Party1: | Democratic Party (United States) |
| Popular Vote1: | 2,436,407 |
| Percentage1: | 62.47% |
| Nominee2: | Charlie Crist |
| Party2: | Republican Party (United States) |
| Popular Vote2: | 1,463,755 |
| Percentage2: | 37.53% |
| Map Size: | 300px |
| U.S. Senator | |
| Before Election: | Bob Graham |
| Before Party: | Democratic Party (United States) |
| After Election: | Bob Graham |
| After Party: | Democratic Party (United States) |
The 1998 United States Senate election in Florida was held November 3, 1998 alongside other elections to the United States Senate in other states as well as elections to the United States House of Representatives and various state and local elections. Incumbent Democratic U.S. Senator Bob Graham won re-election to a third term., this was the last time a Democrat has won the Class 3 Senate seat from Florida, and the last time a non-Hispanic won the Class 3 Senate seat from Florida.
Graham defeated Crist in a landslide, as Crist won just four counties in the state. There were no third party or independent candidates.