| Name: | DEMON |
| Type: | Destroyer |
| Keel: | n/a |
| Launched: | n/a |
| Completed: | n/a |
| Builder: | Swan, Hunter & Wigham Richardson Ltd |
| Yard: | Wallsend |
| Yard Number: | 1747 |
| Dimensions: | 2830disp - 3820disp, 366.0 x 43.0 x 12.8(draft)ft |
| Engines: | 2 x Geared steam turbines, Parsons type, 54000shp |
| Engines by: | Wallsend Slipway & Engineering Co Ltd, Wallsend |
| Propulsion: | 2 x Screws, 30.0knots |
| Construction: | Steel |
| Armament: | 3 x 2 x 4.5ins QF, 3 x 2 x 40mm guns, 2 x 5 x 21.0ins torpedoes, Squid mortar |
| History: | |
| British Royal Navy | |
| Cancelled | |
| Comments: | Member of the Daring Class of destroyers |
| 24/01/1945: Ordered at the same time as DARING | |
| Allocated pennant number I35 | |
| 13/12/1945: Cancelled by the Admiralty, not laid down. |