Edvard Armas Järnefelt (14 August 1869 – 23 June 1958), was a Finnish conductor and composer, who achieved some minor success with his orchestral works Berceuse (1904) and Praeludium (1900).

He spent much of his conducting career at the Royal Swedish Opera in Stockholm, Sweden.

Järnefelt studied with Ferruccio Busoni in Helsinki and with Jules Massenet in Paris.

[4] His siblings were Kasper Järnefelt [Fi], a critic and translator of Russian literature; the writer Arvid Järnefelt (the incidental music for his play Kuolema was written by Jean Sibelius); the painter Eero Järnefelt (Erik); Ellida; Ellen, Aino (who married Sibelius); Hilja; and Sigrid.

In June 2012 a display of Järnefelt paraphernalia was opened in the entrance of the Sibelius Academy situated in the Helsinki Music Center.