| Name | Shipbuilder | Build Location |
|---|---|---|
| Roforma | Unknown | Unknown |
| SS Rome | Unknown | Unknown |
| Roon | Unknown | Unknown |
| Roon | Unknown | Unknown |
| Roses | Unknown | Unknown |
| SS Rostock (1901) | Unknown | Unknown |
| Rotomohana | Unknown | Unknown |
| Royal Bride | Unknown | Unknown |
| Rualine | Unknown | Unknown |
| Rumano Naru | Unknown | Unknown |
| Runic | Unknown | Unknown |
| Sahopire | Unknown | Unknown |
| Saitier | Unknown | Unknown |
| Salagehie | Unknown | Unknown |
| Salem | Unknown | Unknown |
| Salier (1875) | Unknown | Hull |
| Samero | Unknown | Unknown |
| Samershagen | Unknown | Unknown |
| Samuel Plymsell | Unknown | Unknown |
| San Fernando | Unknown | Unknown |
| San Francisco | Unknown | Unknown |
| San Franelo | Unknown | Unknown |
| Saroca | Unknown | Unknown |
| Sattera | Unknown | Unknown |
| SS Scharnhorst | Unknown | Unknown |
| Schlomann | Unknown | Unknown |
| Schollonsmah | Unknown | Unknown |
| Schoseby | Unknown | Unknown |
| Scottish Knight | Unknown | Unknown |
| Scottish Prince | Unknown | Unknown |
| Sebastian | Unknown | Unknown |
| Secondafrons | Unknown | Unknown |
| Sepea | Unknown | Unknown |
| Sera | Unknown | Unknown |
| SS Seydlitz (1902) | Unknown | Unknown |
| Shakespeare | Unknown | Unknown |
| Shannon | Unknown | Unknown |
| Shell | Unknown | Unknown |
| Sherlock | Unknown | Unknown |
| SS Sherwood | Unknown | Unknown |
| Sidenham | Unknown | Unknown |
| Sieira Godfroy | Unknown | Unknown |
| Silver Eagle | Unknown | Unknown |
| Singapore | Unknown | Unknown |
| SS Siras | Unknown | Unknown |
| Sir William Fookes | Unknown | Unknown |
| Skirlin | Unknown | Unknown |
| Skjold (1839) | Unknown | Sønderborg |
| Solasic | Unknown | Unknown |
| Solingen | Unknown | Unknown |