Nicolas Henri René de Grimouard (Fontenay-le-Comte, 25 January 1743 – Rochefort, 7 February 1794)[1][2] was an officer in the French Navy.

At the Battle of the Saintes, on 12 April 1782, Grimouard was first officer on Magnifique,[2] under Macarty Macteigue.

Louis XVI made him a count after the battle, and commissioned a painting of the action from Rossel.

[2] Grimouard was promoted to contre-amiral in July 1792, and was appointed commander of the naval forces in Brest.

[2] During the Reign of Terror in the French Revolution, Grimouard was guillotined in Rochefort on 7 February 1794.