François César Le Tellier, Marquis of Courtanvaux, was the marquis of Courtanvaux, Count of Tonnerre, Duke of Doudeauville, and a French aristocrat, military officer, and scientist.
- Occupation
- astronomer, chemist, military personnel, traveler
- Position held
- president of the French Academy of Sciences, president of the French Academy of Sciences
- Citizenship
- France
- Born
- February 18, 1718
- Died