HMS Redoubt was the mercantile Rover, which the Royal Navy purchased in March 1793 on the outbreak of war with France.

After Redoubt underwent fitting at Woolwich between April and July 1793, Captain Alexander Fraser commissioned her in August for Flushing and Ostend.

As the boats approached with the intent to board, Blenheim's crew pelted them with spears, capstan bars, handspikes, other offensive weapons, and also several large iron shot.

On 4 August 1801 Redoubt and two gun brigs were lying at Shellness Point, Isle of Sheppey, guarding the entrance to Faversham.

[1] The "Principal Officers and Commissioners of His Majesty's Navy" offered "Redoubt, 26 guns, 386 Tons", lying at Sheerness, for sale on 20 May 1802.