1822 in France

• Monarch – Louis XVIII^[1]
• Prime Minister – Joseph de Villèle^[2]

• 20 October - Congress of Verona, at which Russia, Austria and Prussia approve French intervention in Spain.

• Hieroglyphs deciphered by Thomas Young and Jean-François Champollion using the Rosetta Stone.

• 8 February - Maxime Du Camp, writer and photographer (died 1894)
• 4 March - Jules Antoine Lissajous, mathematician (died 1880)
• 8 March - Charles Frédéric Girard, biologist (died 1895)
• 11 March - Joseph Louis François Bertrand, mathematician (died 1900)
• 7 May - André Garin, missionary and parish priest (died 1895)
• 20 May - Frédéric Passy, economist, joint winner (with Henry Dunant) of first Nobel Peace Prize, 1901 (died 1912)
• 26 May - Edmond de Goncourt, writer, critic and book publisher (died 1896)
• 13 September - Maurice Jean Auguste Girard, entomologist (died 1886)
• 19 October - Louis-Nicolas Ménard, man of letters (died 1901)
• 27 December - Louis Pasteur, chemist and microbiologist (died 1895)

Full date unknown

• Delphine Delamare, housewife and suicide (died 1848)
• Gabriel-Hippolyte Destailleur, architect (died 1893)

• 3 March - Abraham-Joseph Bénard, actor (born 1750)
• 19 March - Valentin Haüy, founder of the first school for the blind (born 1745)
• 10 May - Roch-Ambroise Cucurron Sicard, abbé and instructor of deaf-mutes (born 1742)
• 17 May - Duke of Richelieu, former Prime Minister (born 1766)
• 3 June - René Just Haüy, mineralogist (born 1743)
• 2 August - Thomas de Treil de Pardailhan, nobleman and soldier (born 1754)
• 18 August - Armand-Charles Caraffe, historical painter and etcher (born 1762)^[3]
• 19 August - Jean Baptiste Joseph Delambre, mathematician and astronomer (born 1749)
• 16 September - Auguste Jean Ameil, Brigade General (born 1776)
• 6 November - Claude Louis Berthollet, chemist and senator (born 1748)
• 10 December - Bertrand Andrieu, medal engraver (born 1761)

Full date unknown

• Marie-Catherine de Maraise, businesswoman (born 1737)