| Built By: | Vickers (Barrow) |
| Build Group: | C1 |
| Fate: | Scrapped in July 1922. |
| 1908: | Lieutenant Commander | Charles Stuart Benning | |
| 1908: | Lieutenant | Robert Henry Taunton Raikes | |
| 1911: | Lieutenant | George Harley Pownall | |
| 1912: | Lieutenant | Charles Gordon Brodie | |
| 1913: | Lieutenant | John Robert Guy Moncreiffe | |
| 1913: | Lieutenant Commander | Charles Stuart Benning | |
| 1914: | Lieutenant | Claud Lacy Yea Dering | |
| 1916: | Lieutenant | Robert Francis Peto | |
| 1917: | Lieutenant | Frank Delamain Morris |
1914: 6th Flotilla Chatham, HMS Bonaventure and Hebe p>
It is believed that due to C9's actions the bombardment of Hartlepool by the German battle-cruisers Seydlitz, Moltke and Blücher on 16th December 1914 was brought to an aburpt end when they thought that C9 was in a position to attack them having forced her way out of the port.
During this raid there were 86 people killed and 424 wounded.
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