1803 in France

Events from the year 1803 in France.

Incumbents

The French Consulate{{cite web |title=Consulate {{!}} French history {{!}} Britannica |url=https://www.britannica.com/topic/Consulate-French-history |website=www.britannica.com |access-date=25 June 2022 |language=en}}

30 January
Monroe and Livingston sail for Paris to discuss, and possibly buy, New Orleans: they end completing the Louisiana Purchase.
Napoleon authorizes the celebration of a Joan of Arc feast in Orléans on 8 May.{{cite book | author= William Fortescue| title =The Third Republic in France 1870-1940: Conflicts and Continuities| publisher =Routledge| year =2002| page =99| isbn =1134740220}}
30 April - Louisiana Purchase made by the United States from France.
May - The First Consul of France Citizen Bonaparte begins making preparations to invade England.
18 May - The United Kingdom redeclares war on France, after French refuse to withdraw from Dutch territory.
5 July - Convention of Artlenburg, the surrender of the Electorate of Hanover to Napoleon's army.
18 November - Haitian Revolution: Battle of Vertières, decisive Haitian victory over the French colonial army.

16 February - Louis-Antoine Garnier-Pagès, politician (died 1878)
3 March - Alexandre-Gabriel Decamps, painter (died 1860)
15 March - Alexandre Boreau, pharmacist and botanist (died 1875)
7 April - Flora Tristan, socialist writer and activist (died 1844){{cite book|first=Patricia|last=Howe|chapter=Appropriation and Alienation: Women Travellers and the Construction of Identity|editor1-first=Paul|editor1-last=Gifford|editor2-first=Tessa|editor2-last=Hauswedell|title=Europe and Its Others: Essays on Interperception and Identity|location=Oxford|publisher=Peter Lang|year=2010|page=78|isbn=978-3-03911-968-4}}
24 April - Jean Étienne Bercé, entomologist (died 1879)
24 May - Charles Lucien Bonaparte, naturalist and ornithologist (died 1857)

22 July - Eugène Isabey, painter, draftsman, and printmaker (died 1886)
24 July - Adolphe Adam, composer and music critic (died 1856)
8 September - Léon Faucher, politician and economist (died 1854)
12 September - Julien Auguste Pélage Brizeux, poet (died 1858)
13 September - Jean Ignace Isidore Gérard, caricaturist (died 1847)
23 September - Jacques Crétineau-Joly, journalist and historian (died 1875)
28 September - Ferdinand Berthier, deaf educator, intellectual and political organiser (died 1886)
28 September - Prosper Mérimée, dramatist, historian and archaeologist (died 1870)
11 December - Hector Berlioz, composer (died 1869)
24 December - Jean-Rémy Bessieux, founder of Roman Catholic mission in Gabon and first Bishop there (died 1876)

18 January - Sylvain Maréchal, essayist, poet and philosopher (born 1750)
29 January - La Clairon, actress (born 1723)
9 February - Jean François de Saint-Lambert, poet (born 1716)
11 February - Jean-François de La Harpe, playwright, writer and critic (born 1739)
16 February - Louis René Édouard, cardinal de Rohan, Cardinal (born 1734)
20 February - Marie Dumesnil, actress (born 1713)
4 March - Madame de Marsan, Royal children's governess (born 1720)
24 April - Adélaïde Labille-Guiard, painter (born 1749)
April - Louis François Antoine Arbogast, mathematician (born 1759)
29 May - Louis-Antoine Caraccioli, writer, poet, historian and biographer (born 1719)
6 June - Louis Gallodier, ballet dancer and choreographer (b. c1734)