1 is a four-movement orchestral composition by the Finnish composer Uuno Klami, who wrote the piece from 1937 to 1938.

[1] Georg Schnéevoigt and the Helsinki Philharmonic Orchestra premiered the work on 5 May 1939;[2] later that year, Klami enlisted in the Finnish military and fought against the Soviet Union in the Winter War.

1 is the first of Klami's two numbered symphonies, it was preceded by the Symphonie enfantine (Children's Symphony), Op.

17, a 1928 composition for chamber orchestra.

They are as follows:[3] The sortable table below lists the only commercially available recording of the First Symphony: