&sq=&lang=&file=File:Question_book-new.svg){kind=small} | This article needs additional citations for verification. (February 2023) |
&sq=&lang=&file=File:Sovereign_and_Ikra.JPG) Sovereign (behind) and Ikra. | |
| Yacht club |  Royal Thames Yacht Club |
|---|---|
| Nation |  United Kingdom |
| Class | 12-metre |
| Sail no | K–12 |
| Designer(s) | David Boyd |
| Builder | Alexander Robertson & Sons |
| Owner(s) | J. A. Boyden |
| Racing career | |
| America's Cup | 1964 America's Cup |
| Specifications | |
| Type | Monohull |
Sovereign (sail number K-12) was the unsuccessful challenger of the 1964 America's Cup for the Royal Thames Yacht Club.