Name
- Johnstone, Kenneth Roy, diplomat, 1902-19781
- Jones, Margaret, Associate of the Royal Philharmonic Society, fl 1925-19451
- Joseph, Jane M, composer, amanuensis of Gustav Holst, d 19291
- Kantrovitch, Vera, afterwards Duncan; violinist, fl 1920-19601
- Kidson, Frank, musicologist and antiquary, 1855-19261
- Kimber, William, morris dancer and musician, 1872-19611
- King, Alexander, music librarian, 1911-19941
- Kingsbury, Martin, music publisher, fl 19841
- Kirkpatrick, John, pianist, 1905-19911
- Kirkwood, Antoinette, composer, b 1930, http://isni.org/isni/000000...1
- Kleimert, Dorrit, singer, b 19381
- Kletschka, Klara, 1910-19591
- Kodály, Sarolta, née Péczely, fl 1940-19701
- Korn, Peter Jona, composer, 1922-19981
- Koussevitzky, Sergei Aleksandrovich, conductor and double bass player, 1874-1951, http://isni.org/isni/000000...1
- Krips, Josef, conductor, 1902-1974, http://isni.org/isni/000000...1
- Lade, John, broadcaster, 1917-20071
- Langton, Edmund, fl 1870-19101
- LeFanu, Nicola, composer, b 19471
- LeFanu, William, medical writer and librarian, 1904-19951