Name
- Killeen, John Wells, fl 1949-19681
- Kirby, Norah K, personal secretary and companion of composer John Ireland, 1895-19821
- Knipper, Lev, composer1
- Korchinska, Maria, Russian harpist, 1895-19791
- Kotliarov, Boris, musicologist, fl 1960-19801
- Krein, Aleksandr Abramovich, composer1
- Lan, Adomián, composer, 1905-19791
- Landa, Albert, Australian pianist and composer, fl 1950-20101
- Lauricella, Remo, composer, 1912-2003, http://isni.org/isni/000000...1
- League of Nations Union, 1918-1
- Lemare, Iris, conductor, 1902-19971
- Lewis, Joseph, conductor, fl 1940-19551
- Lissa, Zofia, musicologist and philosopher, 1908-19801
- Littlewood, Joan Maudie, playwright and theatre director, 1914-20021
- Liverpool Trades Council1
- Lockspeiser, Edward, musicologist, 1905-19731
- London Labour Choral Union1
- London Workers' Ballet1
- Loveday, Alan Raymond, violinist, 1928-20161
- Lovett, Sydney H, organist, b 18811