Valse triste (Sad Waltz), Op. 44, No. 1, is a short orchestral work in waltz form by the Finnish composer Jean Sibelius. It was originally part of the incidental music he composed for his brother-in-law Arvid Järnefelt's 1903 play Kuolema (Death), but is far better known as a separate concert piece.
Sibelius wrote six pieces for the 2 December 1903 production of Kuolema. The first was titled Tempo di valse lente - Poco risoluto. In 1904 he revised the piece, which was performed in Helsinki on 25 April of that year as Valse triste. .