| Election Name: | 2000 United States Senate election in Florida |
| Country: | Florida |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 1994 United States Senate election in Florida |
| Previous Year: | 1994 |
| Next Election: | 2006 United States Senate election in Florida |
| Next Year: | 2006 |
| Election Date: | November 7, 2000 |
| Image1: | Bill Nelson.jpg |
| Nominee1: | Bill Nelson |
| Party1: | Democratic Party (United States) |
| Popular Vote1: | 2,989,487 |
| Percentage1: | 51.04% |
| Nominee2: | Bill McCollum |
| Party2: | Republican Party (United States) |
| Popular Vote2: | 2,705,348 |
| Percentage2: | 46.19% |
| Map Size: | 300px |
| U.S. Senator | |
| Before Election: | Connie Mack III |
| Before Party: | Republican Party (United States) |
| After Election: | Bill Nelson |
| After Party: | Democratic Party (United States) |
The 2000 United States Senate election in Florida was held on November 7, 2000, on the same date as the U.S. House of Representatives and presidential election. Incumbent Republican Senator Connie Mack III decided to retire instead of seeking a third term. Democrat Bill Nelson won the open seat, even as Republican presidential nominee George W. Bush narrowly triumphed over Al Gore in the state by a mere 537 vote, thus this is the last time that a party flipped a Senate seat in a state that flipped against them in the simultaneous presidential election.
Bill McCollum's 46.19% popular vote percentage is the highest for a losing Republican United States Senate candidate in Florida.
This election was in conjunction to the presidential election, where Bush narrowly defeated Gore after an intense recount. The Senate election was evenly matched, with two U.S. Congressmen named Bill in their mid-50s. Both parties heavily targeted this senate seat.[1] The election became very nasty as Nelson called his opponent "an extremist who would sacrifice the elderly, the poor, and the working class to coddle the rich." McCollum called the Democrat "a liberal who would tax everything that moves, and some things that don't." The election advertisements were very negative, as both candidates talked more about each other than themselves.[2]
Nelson raised only soft money,[3] but had help from Gore and President Bill Clinton. Two days before the election, McCollum predicted he would win by a 6-point margin.[4] On election day, he lost by a five-point margin.