Louis Charles Armand Fouquet, known as Chevalier de Belle-Isle (19 September 1693 in Agde – 19 July 1747 at the Battle of Assietta) was a French general and diplomat.
He was employed under his brother in political missions in Bavaria and in Swabia in 1741–1742, became a lieutenant-general, fought in Bohemia, Bavaria and the Rhine countries in 1742–1743, and was arrested and sent to England with the marshal in 1744.
On his release he was given a command in the Army of Piedmont.
He fell a victim to his romantic bravery at the battle of Assietta on 19 July 1746.