| Solaris | 139.7 | 2021 | Lloyd Werft |
| Solaris | 29.2 | 2012 | Sunseeker |
| Sole Di Mare | 35.5 | 1999 | Baglietto S.p.A. |
| Solea | 36.19 | 1974 | Sieghold |
| Soledo | 29.06 | 2020 | Sanlorenzo |
| Soleil | 28.6 | 2021 | Extra Yachts |
| Solemates | 36 | 2022 | Mulder Shipyard |
| Solinda | 49.8 | 1990 | Feadship |
| Solis | 34 | 2015 | Mulder Shipyard |
| Solitaire of Surama | 31.76 | 1974 | Cantieri Navali Beconcini |
| Solmar V | 34.14 | 1972 | Southern Marine Shipyard |
| Solona | 29.1 | 2002 | Sanlorenzo |
| Solonian | 28.42 | 2016 | Viking Yachts |
| Solstice | 28.62 | 2017 | Azimut Yachts |
| Solution | 43.59 | 2010 | Westport Yachts |
| Solvang II | 32.1 | 1939 | Aasheim Verksted |
| Someday | 38.36 | 2023 | Custom Line |
| Something Cool | 45.48 | 1981 | CRN |
| Something Cool | 29.7 | 1964 | Feadship |
| Something Wild | 32.5 | 1976 | Cantiere Navale St. Margherita Ligure |
| Somnium | 55.2 | 2021 | Feadship |
| Son Of Wind | 42.3 | 2021 | |
| Son de Mar | 38.96 | 2019 | Odisej Shipyard |
| Sondra D | 30.2 | 2004 | Hatteras Yachts |
| Song of Songs | 42.27 | 2022 | Heysea Yachts |
| Song of the Sea | 34.34 | 2002 | Nautor Swan |
| Sonia C | 31 | 1991 | Versilmarina |
| Sonician | 45.72 | 2002 | Trinity Yachts |
| Sonishi | 40.05 | 2019 | Sunseeker |
| Sonny II | 30.6 | 2015 | Custom Line |
| Sonrisa Septimo | 28.9 | 1997 | Astondoa S.A. (Astilleros) |
| Sophia | 30.48 | 2002 | Azimut Yachts |
| Sophia | 96.6 | 2017 | Feadship |
| Sophia | 27.96 | 2023 | Pershing S.p.a. |
| Sophie | 27.74 | 1994 | Renaissance Yachts |
| Sophie Blue | 41 | 1998 | CBI Navi |
| Soprano | 38.25 | 2017 | Royal Hakvoort Shipyard |
| Soraya | 33.5 | 2001 | Overmarine Group SPA |
| Sorcerer II | 28.96 | 1998 | Cookson Boats |
| Sorceress | 31.41 | 2017 | Southern Wind |
| Sorcha | 46.3 | 2005 | Northern Marine Co. LLC |
| Sorrento | 62 | 2010 | Benetti SpA |
| Sorridente | 28.96 | 2010 | Azimut Yachts |
| Soul | 28.29 | 2001 | Hatteras Yachts |
| Souldmate | 30.75 | 2000 | Azimut Yachts |
| Soulmate | 34.3 | 2015 | DL Yachts |
| Soundwave | 63 | 2015 | Benetti SpA |
| Sounion II | 31.62 | 1969 | Benetti SpA |
| Souraya | 37.2 | 2012 | Sanlorenzo |
| South | 33 | 2020 | Custom Line |
