Defender (America's Cup)
The Defender in the America's Cup sailing competition is the team that holds the trophy and has been challenged by another union for the title return.
Defenders
| Year | Venue | Defending club | Defender |
| 1851 | Isle of Wight |  |
The Defender in the America's Cup sailing competition is the team that holds the trophy and has been challenged by another union for the title return.