1786 in France

Incumbents

• Monarch: Louis XVI

Events

September

• 26 September - The Eden Agreement, a trade treaty with Great Britain, is signed.
• 5 October - Death of Jean-Baptiste Marie de Piquet, Marquess of Méjanes; his book collection is bequeathed to form the basis of the Bibliothèque Méjanes at Aix-en-Provence.

Births

• 11 January - Louis Tromelin
• 13 January - Pierre-Dominique Bazaine
• 23 January - Auguste de Montferrand
• 2 February - Jacques Philippe Marie Binet
• 4 March - Amédée Despans-Cubières
• 31 March - Louis Vicat
• 20 April - Marc Seguin
• 9 July - Princess Sophie Hélène Béatrice of France
• 10 July - John Baptiste Henri Joseph Desmazières
• 31 August - Michel Eugène Chevreul
• 29 September - Auguste-François Michaut
• 10 October - François-Édouard Picot
• 21 October
• *Henry Lemoine
• *Louis Isidore Duperrey
• 30 December - André Étienne d'Audebert de Férussac

Deaths

• 7 January - Jean-Étienne Guettard
• 14 January - Catherine-Nicole Lemaure
• 6 March - Charles Germain de Saint Aubin
• 22 June - Claude Arnulphy
• 2 August - François-Louis Gand Le Bland Du Roullet
• 20 December - Nicolas Thyrel de Boismont