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

Järnefelt is a surname originating in Sweden and Finland. Notable people with the surname include:

August Alexander Järnefelt (2 April 1833 – 15 April 1896) was a Finnish general, topographist, governor and senator.

Barneveldt is a racing horse. She was sired by The Winter King with Black Domino as the dam.