| Cork Week |
| Boats Y - Z |
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| Sail No | Boat | Type of Boat | Owner | Fleet | Fleet |
| IRL6676 | Y Knot | First 32s5 | Patrick & Cathal Barrett & Conlon | Cork Week IRC6 | |
| IRL7741 | Yanks $ ffrancs | Dufour 32 Classic | Vincent O'Shea | Cork Week IRC5 | |
| NED5859 | Yellow Rose | X332 | Marten Jan Ringers | Cork Week X332 | |
| GBR124 | Yeoman of Hamble | Judel Vrolijk 46 | David Aisher | Cork Week IRC0 | Cork Week IRC0C |
| IRL9638 | Yeomantix | Corby 36/95 | Robin Aisher | Cork Week IRC3 | |
| 9002 | Zest | JS 9000 | Ross Cahill-O'Brien | Cork Week Mixed Sports Boats | |
| RSA918 | Zimbali | Mumm 30 | Thomas Smyth | Cork Week IRC1 | |
| GBR7622R | Zulu | Projection 762 | Kevin Rolfe | Cork Week IRC5 | |
| GBR567R | Zzing | Mumm 36 | Bob Fisher | Cork Week IRM | Cork Week IRM Small |