&sq=&lang=&file=File:Jsj-750-Columbia_Shamrock_1899.jpg) Shamrock and Columbia in 1899 | |
| Yacht club |  Royal Ulster Yacht Club |
|---|---|
| Nation |  United Kingdom |
| Designer(s) | William Fife III |
| Builder | J. Thorneycroft & Co. |
| Launched | 26 June 1899 |
| Owner(s) | Sir Thomas Lipton |
| Racing career | |
| Skippers | Captain Archibald "Archie" Hogarth |
| America's Cup | 1899 |
| Specifications | |
| Displacement | 156.9 metric tonnes |
| Length |
|
| Beam | 7.46 m (24.5 ft) |
| Draft | 6.15 m (20.2 ft) |
| Sail area | 1,214.30 m2 (13,070.6 sq ft) |
Shamrock was a racing yacht built in 1898 that was the unsuccessful Irish challenger for the 1899 America's Cup against the United States defender, Columbia.