- Mols, Alexis
- Molter, Johann Melchior (1696-1765)
- Mompou, Federico (1893-1987)
- Monar, Arnold Joseph (1860-1911)
- Monard (c1663-)
- Monari, Barthelomeo (1663-1697)
- Monestel, Alexandre (1865-1950)
- Monfred, Avenir H. de (1903-1974)
- Moniuszko, Stanislaw (Stanislaus, Станислав) (1819-1872)
- Monk, Albert Ernest (1904-)
- Monk, Alfred (1847-)
- Monk, Dr Edwin George (1819-1900)
- Monk, Edwin Lewis (1882-)
- Monk, James Jonathan (1846-1890)
- Monk, Dr Mark James (1858-)
- Monk, William Henry (1823-1889)
- Monks, Christopher
- Monks, Thomas Oliver (1908-)
- Monkton, Richard I.
- Monllor, Vicente Rodriguez
- Monn, Georg Matthias (1717-1750)
- Monnikendam, Marius (1896-1977)
- Mononen, Tuomo Sakari (1928-1997)
- Monro, George (-1731)
- Monro, Henry (1774-)
- Mons, Philipp de (1521-1603)
- Monset, Ernst T. (1954-)
- Montague, Dr Stephen Rowley (1943-)
- Montaine, John la (1920-)
- Montani, Nicola Aloysius (1880-1948)
- Montber, J. de
- Monte, Philippe (Filippo, Philippus) de (1521-1603)
- Monteith, Carl
- Monteith, Claude Ernest
- Monter, Josef (1931-)
- Montesinos Comas, Eduardo (1945-)
- Montesquieu, de
- Montgomery, Bruce Eglinton (1927-2008)
- Montgomery, Hugh Glencorse (1887-)
- Montgomery, Robert Bruce (1921-1978)
- Montgomery, William Augustus (1872-1948)
- Montillet, William
- Montsalvatge, Basspls Xavier (1912-2002)
- Monza, Carlo (c1735-1801)
- Moody, Dr Charles Harry (1874-)
- Moolen, F. H. van der
- Moolenaar, Frieso (1881-1965)
- Moone, Benjamin
- Moonen, Léon Herman René (1842-)
- Moore, Dom Andrew (1954-)
- Moore, Carman Leroy (1939-)
- Moore, Clement A. (1889-)
- Moore, Donald Lee (1910-2000)
- Moore, Douglas Stuart (1893-1969)
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- Moore, Earl Vincent (1890-)
- Moore, Ernist Alwyn (1899-1975)
- Moore, Fielding (1892-)
- Moore, James (1909-)
- Moore, Dr John Edward (1888-)
- Moore, John Herbert (1872-1948)
- Moore, Keith (1970-)
- Moore, Margery
- Moore, Percy Frederick (1877-)
- Moore, Philip Harold (1921-)
- Moore, Philip John (1943-)
- Moore, Reginald (1910-)
- Moore, Reginald Bowerman (1850-1929)
- Moore, Richard Lloyd (1876-)
- Moore, Robert C. (1962-)
- Moore, Robert Henry (1856-)
- Moore, Samuel (1860-)
- Moore, Timothy (1922-2003)
- Moore, Thomas
- Moore, Violet (c1887-)
- Moore, William George (1893-)
- Moore, Walter Henry (1874-)
- Moores, Edwin Middleton (1886-1983)
- Moorhouse, Richard
- Moorkens, Jozef Gratiaan (1881-1972)
- Moorley, Thomas George (1906-)
- Moortgat, Alphonse J. I. (1881-1962)
- Moose, Robert
- Moosmair, August
- Morales, Christóbal (Christofano, Cristofero) de (1512-1553)
- Morançon, Guy Adrien Louis Marie (1927-)
- Morandi, Giovanni (1777-1856)
- Mordant, Henry
- Mordant, R.
- Moreau, E.
- Moreau, Abbé Félix (1922-)
- Moreau, Pierre (1907-1991)
- Moreaux, Edmond Léon
- Moreaux, Abbé Wulfran (1827-1905)
- Morecroft, Sydney (1906-)
- Morehen, Dr John Manley (1941-)
- Morel, Joseph (François d’Assise) (1926-)
- Morén, Olof Johan (1826-1898)
- Morén, John Teodor (1854-1932)
- Moreno y Polo, Juan (1711-1776)
- Mores, Renaat (1899-1998)
- Mores, René
- Moret, Norbert (1921-1998)
- Moreton, Frederick William (1868-)
- Moreton, Dr George Harry (1865-1961)
- Moretti, Fabrizio (1960-)
- Moretti, Niccolò Francesco (1763-1821)
- Morey & Barnes
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Organist 
Organist & composer 
Composer 
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