Events from the year 1904 in Sweden.

• Monarch – Oscar II
• Prime Minister – Erik Gustaf Boström

This section needs expansion. You can help by adding to it. (June 2015)

• 10 January - The Swedish Antarctic Expedition returns to Stockholm.^[1]
• 18 December – The Swedish Football Association is founded in Stockholm.^[2]
• Date unknown – First issue of Morgonbris.
• Date unknown – From this year until 1909, co-education is introduced in a number of state secondary education schools, which makes private girls schools redundant.^[3]

This section needs expansion. You can help by adding to it. (June 2015)

• 4 January - Hjördis Töpel, Olympic diver and swimmer^[4]
• 13 January - Ewa Olliwier, Olympic diver^[5]
• 18 January - John Axel Nannfeldt, botanist and mycologist^[6]
• 24 January - Wivan Pettersson, Olympic swimmer^[7]
• 29 February - Helmer Grundström, writer^{[citation needed]}
• 31 March - Harald Berglund, cinematographer^[8]
• 1 April - Holger Löwenadler, film actor^[9]
• 2 April - Karl Ragnar Gierow, theater director, author and translator^[10]
• 8 April - Georg Werner, Olympic freestyle swimmer^[11]
• 6 May - Harry Martinson, writer, recipient of the Nobel Prize in Literature^[12]
• 22 May - Uno Lamm (born August Uno Lamm), electrical engineer and inventor^[13]
• 2 July - Erik Lundin, chess master^{[14][unreliable source?]}
• 19 July - Vera Schmiterlöw, film actress^[15]

• 19 April - Hanna Styrell, actress and royal mistress (born 1842)
• 29 May - Maria Paulina Åhman, harpist (born 1812)^[16]
• 11 June - Clas Theodor Odhner, historian (born 1836)^[17]
• 15 October - Anna Stecksén, scientist (born 1870)