| Name | Length (m) | Year | Builder |
|---|---|---|---|
| Keiki Kai | 30.2 | 2005 | Benetti SpA |
| Kefi | 32 | 2004 | Sunseeker |
| Keewaydin | 33.5 | 1995 | Palmer Johnson Yachts |
| Keep Cool | 33 | 2009 | Sanlorenzo |
| Kaytoo | 30.56 | 2014 | Paragon Motor Yachts |
| Kaycee | 35.05 | 2016 | President Boat International Co., Ltd. |
| Kayana | 36.58 | 1978 | John Perry Marine |
| Kaya Guneri V | 39.5 | 2009 | Bodrum Shipyard |
| Kawil | 34.14 | 2000 | Derecktor Shipyards |
| Kawai | 28.25 | 2010 | Overmarine Group SPA |
| Kavkaz | 45.3 | 1980 | Almaz |
| Kauris IV | 44.2 | 2020 | Wally |
| Katina | 60 | 2015 | Brodosplit Inc. |
| Kathryn | 57.8 | 2023 | Codecasa S.p.A. |
| Kathleen Anne | 39.01 | 2009 | Feadship |
| Katharine | 61.5 | 2000 | CRN |
| Katerina P | 33 | 2008 | Sanlorenzo |
| Katariina XO | 29.2 | 2017 | Ferretti Yachts |
| Katariina I | 36.89 | 2010 | Sunseeker |
| Katara III | 31 | 2011 | Baia Yachts |
| Katara | 124.4 | 2010 | Lürssen Yachts |
| Katania | 30.48 | 1961 | Burger Boat Company |
| Katana | 60 | 2025 | Perini Navi |
| Katalpa | 32.2 | 2017 | Sanlorenzo |
| Kastelan | 28.15 | 2015 | Sunseeker |
| Kassandra | 47.5 | 1989 | Feadship |
| Kassandra | 34.56 | 2005 | Timmerman Yachts |
| Kasper 7 | 67.16 | 2023 | Benetti SpA |
| Kasif | 41.86 | 2023 | Bilgin Yachts |
| Kashmir | 40.5 | 1995 | Broward Marine |
| Karyatis | 32.16 | 2005 | Heesen Yachts |
| Kartal Yuvasi | 39.32 | 1987 | Heesen Yachts |
| Karpuz | 34.02 | 1997 | Nalbantogulu |
| Karma C | 28.43 | 2023 | Custom Line |
| Karma | 30.13 | 2022 | Ferretti Yachts |
| Karma | 28.49 | 2021 | Ferretti Yachts |
| Karma | 29.7 | 1987 | Picchiotti |
| Karillian & Company | 28.06 | 2017 | Sunseeker |
| Karibu | 35.75 | 2023 | Sanlorenzo |
| Kapusha | 29.6 | 2021 | Sanlorenzo |
| Kaptan Kadir | 37 | 2004 | Kadir Turhan |
| Kappa | 30.5 | 1982 | Cantieri di Pisa |
| Kaos | 110.1 | 2017 | Oceanco |
| Kaori | 38.1 | 1991 | Palmer Johnson Yachts |
| Kampai | 28.27 | 2005 | Overmarine Group SPA |
| Kamino | 33.5 | 2016 | Feadship |
| Kamaxitha | 55 | 2012 | Royal Huisman |
| Kamaxitha | 28.04 | 2003 | Horizon Yachts |
| Kamalaya | 55 | 2013 | Amels |
| Kalizma | 50.29 | 1906 | Ramage & Ferguson |