| Name: | ONYX |
| Type: | Sailing vessel |
| Launched: | 06/1831 |
| Completed: | 1831 |
| Builder: | John Witherby & Alexander Ihler |
| Yard: | South Shields |
| Yard Number: | |
| Dimensions: | 278tonsb, 91.2 x 26.8 x 5.9ft |
| Engines: | None |
| Engines by: | n/a |
| Propulsion: | Sail, rigged as a Snow |
| Construction: | Wood |
| Reg Number: | |
| History: | |
| 14/07/1831 | Richard Hansell Bell, South Shields; registered at Newcastle |
| 12/11/1847 | George Gray, Newcastle & Nicholas Gray, South Shields |
| 13/05/1850 | John Smith, Monkwearmouth & Nicholas Gray, South Shields |
| 03/10/1850 | John Smith, Monkwearmouth |
| 25/10/1850 | William George Spear, Newcastle |
| 31/07/1851 | Unknown owner; registered at London |
| No later history known | |
| Comments: | Built in Fairless' Dock |