| Name | Shipbuilder | Build Location |
|---|---|---|
| Lincolnshire (1858) | Unknown | Blackwall, London |
| Linda | Unknown | Unknown |
| Linlithgowshire (1877) | Henry Murray and Co. | Glasgow |
| Little Alfred | Unknown | Unknown |
| Livingstone | Unknown | Unknown |
| Lloyd St Lalies | Unknown | Unknown |
| Loche | Unknown | Unknown |
| Lotteshelli | Unknown | Unknown |
| Louise | Unknown | Unknown |
| Lower Hargen | Unknown | Unknown |
| Lowe von Lilienstein | Unknown | Unknown |
| Ludwina | Unknown | Unknown |
| Lumbus Hagen | Unknown | Unknown |
| SS Lusitania (1871) | Laird, Son & Co | Birkenhead, Britain |
| Lygura | Unknown | Unknown |
| Macassa | Unknown | Unknown |
| SS MacKarrie | Unknown | Unknown |
| Macyrona | Unknown | Unknown |
| Madras | Unknown | Unknown |
| Magdalena | Unknown | Unknown |
| Maheno | Unknown | Unknown |
| Makura | Unknown | Unknown |
| Malvina Vide | Unknown | Unknown |
| Malvina Viedall | Unknown | Unknown |
| Manbara | Unknown | Unknown |
| Manchester | Unknown | Unknown |
| Manilla | Unknown | Unknown |
| Manning Light | Unknown | Unknown |
| Mantell | Unknown | Unknown |
| Manuka | Unknown | Unknown |
| SS Marama (1907) | Caird and Co. | Creenock, Scotland |
| Marathon | Unknown | Unknown |
| Marco Polo | Unknown | Unknown |
| Marie Wilhelmine (1839) | Unknown | Lubeck |
| Mariposa | Unknown | Unknown |
| Markham | Unknown | Unknown |
| Marsalla | Unknown | Unknown |
| Marseille | Unknown | Unknown |
| Mary | Unknown | Unknown |
| Mary Ann Bowl | Unknown | Unknown |
| Mary Banks | Unknown | Unknown |
| Mary Ross | Unknown | Unknown |
| SS Masila | Unknown | Unknown |
| Matilda Athling | Unknown | Unknown |
| McDuff | Unknown | Unknown |
| McKann | Unknown | Unknown |
| Medic | White Star | Unknown |
| Merehaut Prince | Unknown | Unknown |
| Merkera | Unknown | Unknown |
| Merriman | Unknown | Unknown |