Events from the year 1809 in Sweden

• Monarch – Gustav IV Adolf then Charles XIII

• 29 March - Coup of 1809: Gustav IV Adolf of Sweden is deposed in a coup d'état and his uncle is made Regent.^[1]
• May - The Committee on the Constitution (Parliament of Sweden) is established.
• 10 May - The former King's son is also deprived of his right to the throne.
• 5 June - The former king's uncle Charles XIII of Sweden is placed upon the throne after having accepted a new constitution.
• 6 June - Instrument of Government (1809).
• 18 July - Charles August is elected new heir to the throne of Sweden.
• 19-20 August - Battle of Ratan and Sävar
• 17 September - Treaty of Fredrikshamn
• Inauguration of the Malmö Teater in Malmö.
• December - The former monarch and his family leaves Sweden for Germany.
• Allmänna institutet för Blinda och Döfstumma (Public Institute of the Blind and Deaf), the first school for deaf and mute students, is inaugurated in Stockholm by Pär Aron Borg with a demonstration by Charlotta Seuerling.

• 6 January – Sven Lovén, marine zoologist and malacologist (died 1895)
• 21 August – Hanna Brooman, composer, translator and educator (died 1887)
• 7 September - Wilhelmina Gravallius, writer (died 1884)
• - Angelique Magito, actress (died 1895)

• 1 May – Maria Elisabet de Broen, translator and theatre manager (born 1756)
• 25 July - Charlotta Roos, medium (born 1771)
• Jeanna von Lantingshausen, politically active socialite (born 1753)
• Hedvig Sofia von Rosen, royal governess (born 1734)