We have so far registered 92,376 seafarers
| Name | Born | Place of birth (place of living shown if missing) | | Elmer Semskar | October 4, 1914 | | |
| Fredrik Silen | | Lived in Finland | |
| E: Sillambaa | | Lived in Finland | |
| Niilo Sillanpaa | February 2, 1910 | Born in Kankaanpaa, Finland | |
| J. Silvermainen | | Lived in Viborg, Finland | |
| Matti Simola | July 21, 1908 | Born in Kaivisto, Finland | |
| Benthis Sinkkonen | January 22, 1920 | Born in Viborg, Finland | |
| Toive Rauti Olaui Sipila | July 15, 1915 | Born in Viipuri | |
| Adolf Sippe | April 4, 1907 | Born in Kainisto, Finland | |
| Aaro Sipponen | February 21, 1915 | Born in Kivenappa, Finland | |
| Vino Siren | | Lived in Finland | |
| Penti Sirkia | March 7, 1921 | Born in Viborg, Finland | |
| Albert Sjöberg | August 4, 1905 | Born in Inio, Finland | |
| Frans A. Sjøberg | February 26, 1919 | Born in Strømsvik, Åland | |
| Holger Sjøberg | October 18, 1913 | | |
| Veinoe Axel Johannes Sjøberg | October 7, 1894 | Born in Nyland Len, Finland | |
| Waldemar Eric Sjøblom | February 24, 1920 | Born in Karlby, Finland | |
| Børje Fridolf Sjøholm | July 25, 1923 | | |
| Johan Emil Sjølund | March 2, 1863 | Born in Lumparland i Åbo, Finnland | |
| Karl Konstantin Sjølund | May 21, 1910 | Born in Mariehamn, Åland | |
| Richard Sjøstrøm | September 3, 1921 | Born in Åland, Finland | |
| Walter Skogberg | April 29, 1919 | Born in Åland, Finland | |
| Karl B. Skriver | November 7, 1921 | Born in Marpiö, Finland | |
| Johan Skur | 1854 | Born in Vasa, Finland | |
| Karl Alfred Skur | January 16, 1858 | Born in Vasa, Finland | |
