Events from the year 1810 in Sweden

• Monarch – Charles XIII

• 6 January - Treaty of Paris (1810)
• 7 January - The newly elected heir to the throne, Charles August, arrives in Sweden.
• 28 May - Charles August, Crown Prince of Sweden dies. Rumors suspect poisoning by the Gustavian Party.
• May - Maria Nilsdotter i Ölmeskog dissolves a potential rebel army and are rewarded by the monarch for having prevented a rebellion.^[1]
• 20 June - Fersen murder: Axel von Fersen the Younger, a member of the Gustavian Party, is killed by a lynch mob in Stockholm suspected of having murdered Charles August.
• 21 August - Jean Baptiste Bernadotte is elected the new heir to the Swedish throne.
• 20 October - Jean Baptiste Bernadotte arrives in Sweden.
• 2 November - Jean Baptiste Bernadotte makes his formal entry in Stockholm and takes the name Charles John.
• 2 November - The Swedish Act of Succession is passed.
• 5 November - Jean Baptiste Bernadotte is formally adopted by Charles XIII.
• 7 November - Anglo-Swedish War (1810–12)
• 22 December - The spouse and son of Jean Baptiste Bernadotte, Désirée Clary and the future Oscar I, arrives in Sweden.
• The Smådalarö Gård is completed.
• Johan Olof Wallin inducted to the Swedish Academy.
• The right of an unmarried woman to be declared of legal majority by royal dispensation are officially confirmed by parliament.^[2]
• The execution of Metta Fock.

• 20 May – Sara Augusta Malmborg, singer, pianist and painter (died 1860) 1810 - 1860
• 7 June - Carl August Adlersparre, chamberlain (1838), poet, novelist and historian (died 1862) 1810 - 1862
• 16 October – Carl Wahlbom, artist (died 1858) 1810 - 1858

• 19 March – Louis Masreliez, artist (born 1748)
• 28 May - Charles August, Crown Prince of Sweden, crown prince (born 1768)
• 20 June - Axel von Fersen the Younger, courtier, military, diplomat (born 1755)
• 17 September - Ulla von Höpken, courtier profile of the Gustavian Age (born 1749)
• - Hedvig Amalia Charlotta Klinckowström, artist (born 1777)