| Name: | SYREN or SIREN |
| Type: | Frigate - 6th Rate |
| Keel: | 21/01/1778 |
| Launched: | 29/07/1779 |
| Completed: | 11/1779 |
| Builder: | Francis Hurry & Co |
| Yard: | Howdon Dock |
| Yard Number: | |
| Dimensions: | 514tonsb, 94.25 x 32.0 x 10.25ft |
| Engines: | None |
| Engines by: | n/a |
| Propulsion: | Sail, rigged as a Ship |
| Construction: | Wood |
| Armament: | 22 x 1 x 9pdr, 2 x 1 x 6pdr guns |
| History: | |
| 1779 | British Royal Navy |
| 26/01/1781 | Wrecked |
| Comments: | Also seen as built by James Baker at Howdon |
| A member of the Porcupine Class | |
| 26/01/1781: Wrecked Crookmere Haven, Deptford |