- James, Billy, 1895-1965 (composer/lyricist)1
- Jentes, Harry, 1887- (composer)1
- Jessel, Leon, 1871-1942 (composer)1
- Jessel, Léon (composer/lyricist)1
- Jessel, Léon, 1871-1942 (composer)1
- Johnson, J. C., 1896-1981 (composer)1
- Johnson, J. Rosamond (John Rosamond), 1873-1954 (composer)1
- Joplin, Scott, 1868-1917 (composer)1
- Kahn, Gus, 1886-1941 (composer/lyricist)1
- Keel, Frederick, 1871-1954 (composer)1
- Kenbrovin, Jaan (composer/lyricist)1
- Kendis, James, 1883-1946 (composer/lyricist)1
- King, Charles E. (Charles Edward), 1874-1950 (composer/lyricist)1
- Koehler, Ted, 1894-1973 (composer/lyricist)1
- Lampe, J. B. (Jens Bodewalt), 1869-1929 (composer)1
- Leopold, J. Walter, 1890-1956 (composer)1
- Lincke, Paul, 1866-1946 (composer)1
- Lo?hr, Hermann, 1871-1943 (composer)1
- Lodge, Henry, 1884-1933 (composer)1
- Luders, Gustav, 1865-1913 (composer)1