- Jabłoński, Henryk Hubertus (1915-1989)
- Jabor, Maia de Carvalho Najla (1915-2001)
- Jacchini, Giuseppe Maria
- Jachino, Carlo (1887-1971)
- Jacinto, Frei
- Jack, Adrian (1943-)
- Jackman, G. E.
- Jackman, Percy
- Jackson, Arthur
- Jackson, Arthur Vivian (1880-)
- Jackson, Bernard (1867-1948)
- Jackson, Carl Anthony
- Jackson, Edward (1898-)
- Jackson, Dr Francis Alan (1917-)
- Jackson, Capt. Fred W. (c1868-)
- Jackson, Gabriel (1962-)
- Jackson, Dr George Knowil (1745-1823)
- Jackson, H.
- Jackson, Herbert Chisholm (1871-)
- Jackson, H. Ralph
- Jackson, James
- Jackson, John
- Jackson, John H. (1883-)
- Jackson, Dr John William (c1862-)
- Jackson, Dr Joseph Bernard (1891-)
- Jackson, Sir Nicholas Fane St. George (1934-)
- Jackson, Samuel P. (1818-1885)
- Jackson, Stanley
- Jackson, Sir T. G.
- Jackson, Thomas (c1715-1781)
- Jackson, W. J. Warner
- Jackson, William (1730-1803)
- Jackson, William (1816-1866)
- Jacob, Andreas (1967-)
- Jacob, Armand Paul Georges (1877-1950)
- Jacob, Benjamin (1778-1829)
- Jacob, Dom Clément (Maxime) (1906-1977)
- Jacob, Friedrich August Leberecht (1803-1884)
- Jacob, Gerd (1952-)
- Jacob, Dr Gordon Percival Septimus (1895-1984)
- Jacob, Louis Ambroise (1841-)
- Jacob, Werner (1938-)
- Jacobi, Frederick (1891-1952)
- Jacobi, Georges (1840-1906)
- Jacobi, Margarete (1921-)
- Jacobs, F.
- Jacobs, James Leslie (1906-)
- Jacobs, Leslie
- Jacobs-Bond, Carrie (1862-1946)
- Jacobsen, Frederik Christian (1843-1921)
- Jacobsen, Per Christian (1940-)
- Jacobsen, Poul S. (1966-)
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- Jacobson, Maurice (1896-1976)
- Jacquel, Gustave (-1893)
- Jacquemain, Benoît (1975-)
- Jacquemin, Abbé Camille Marie (1899-1947)
- Jacquemin, Eloi Joseph Auguste (-1919)
- Jacquemin, Abbé Louis (1881-)
- Jacques, John Michael (1944-)
- Jacques, Sister Rhené (Marguerite Marie) (1918-)
- Jacquet, Henri Maurice (1886-1954)
- Jacquet, Pierre (c1666-1729)
- Jacquet de la Guerre, Élisabeth Claude (1665-1729)
- Jadassohn, Salomon (1831-1902)
- Jader, Jørs (1889-)
- Jadin, Léon (1878-1967)
- Jaeger, David Trent (1947-)
- Jaeggi, Père Oswald (1913-1963)
- Jaffe, David A. (1955-)
- Jagarte, Manuel (1796-1819)
- Jager, André de (1964-)
- Jäger, Johannes (1748-1826)
- Jäger, Rudolph (1881-)
- Jaggard, Christopher Metcalf (1883-)
- Jaggi, Rudolf (1940-)
- Jahn, Elmar (1950-)
- Jahn, Thomas (1940-)
- Jaillet, J. B.
- Jäkel, Heinz (1931-)
- Jakeševič, Gavro (1911-1987)
- Jakubov, Ilduss Davletovich (1935-)
- Jalava, Lasse (1951-)
- Jalbert, Pierre (1967-)
- James, Allen (1907-1996)
- James, Dennis
- James, Dorothy (1901-1982)
- James, Frederic (Frederick) (1858-1922)
- James, Harold William W. (1881-1942)
- James, Heidi
- James, John (-1745)
- James, John
- James, John Thomas
- James, Joseph Haworth (1903-)
- James, Kenneth Hough
- James, Layton (1941-)
- James, Otto
- James, Dr Philip Frederick Wright (1890-1975)
- James, Robert
- James, Ronald A. (1900-)
- James, William Dawkin (1881-)
- James, William Garnet (1895-)
- Jameson, Gladys (1889-1973)
- Jamet, L.
- Jamieson, David Burns (c1877-)
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Organist 
Organist & composer 
Composer 
Organ builder 
Other
