1743 in France

Incumbents

• Monarch: Louis XV

Events

• 10 May - In New France, Governor Jean-Baptiste Le Moyne de Bienville ends his final term as Governor of colonial French Louisiana, which he helped colonize; he is succeeded by the Marquis de Vaudreuil and returns to France.
• The Moët & Chandon champagne house is established by Claude Moët in Épernay as Moët et Cie.

Births

• 18 January - Louis Claude de Saint-Martin French philosopher, known as le philosophe inconnu.
• 24 May - Jean-Paul Marat, French revolutioner, doctor, scientist
• 17 September - Marquis de Condorcet, French mathematician, philosopher, and political scientist

Deaths

• 29 January - Charles-Irénée Castel de Saint-Pierre, French writer
• 16 June - Louise-Françoise de Bourbon, eldest daughter of Louis XIV and Madame de Montespan; she built the Paris Palais Bourbon where she died
• 27 December - Hyacinthe Rigaud, French painter