Järnefelt is a surname originating in Sweden and Finland. Notable people with the surname include:
- Aino Sibelius (née Järnefelt; 1871–1969), Finnish wife of composer Jean Sibelius
- Alexander Järnefelt (1833–1896), Finnish general, political figure, and topographer
- Armas Järnefelt (1869–1958), Finnish composer and conductor
- Arvid Järnefelt (1861–1932), Finnish judge and writer
- Eero Järnefelt (1863–1937), Finnish realist painter
- Elisabeth Järnefelt (1839–1929), “mother of Finnish art and culture”
- Eero Järnefelt (diplomat) (1888-1970), diplomat, ambassador. Son of Arvid
- Gustaf Järnefelt (1901–1989), Finnish astronomer
- Maikki Järnefelt (1871–1929), Finnish opera singer
See also
edit- 1558 Järnefelt, a main belt asteroid