- Majo von Majowski, Ernest (1916-2002)
- Majone, Ascanio (c1565-1627)
- Major, Douglas R. (1953-)
- Major, John Herbert (1868-)
- Major, Leonard
- Makačinas, Teisutis (1938-)
- Mäkinen, Emil Richard (1875-1944)
- Makinson, James Harold (1896-)
- Makowski, Henryk (1862-1933)
- Malan, Jacob Daniel (1919-)
- Malcolm, George John (1917-)
- Malcolmson, Kenneth Forbes (1911-)
- Malec, Ivo (1925-)
- Maleingreau, Paul Eugène de (1887-1956)
- Maley, Edward Bostock (1834-1895)
- Maley, Young & Oldknow
- Malkin, Harold (c1877-)
- Malkmus, Wilhelm
- Mallaband, Ronald Thomas (1922-)
- Mallam, Mary Ellen (1868-)
- Mallard, Cyrus S.
- Mallié, Loïc (1947-)
- Malling, Otto Valdemar (1848-1915)
- Mallinson, Frank (1897-)
- Mallinson, John Albert (1897-)
- Malloch, James David
- Malmfors, Åke (1918-1951)
- Malmgren, Jens Ole (1946-)
- Malmlöf-Forssling, Carin (1916-)
- Malovec, Jozef (1933-1998)
- Malpass, Charles Maurice (1867-1926)
- Malpassuto, B. Roberto
- Maltzahn, Damian von (1967-)
- Malvezzi, Canon Christofano (1547-1597)
- Mamlock, Ursula (1928-)
- Manari, Raffaele (1887-1933)
- Manassen, Alex Jacques (1950-)
- Manaton, Leonard William (1904-)
- Manchip, James Orchard
- Mancini, Arthur (1851-1927)
- Mancinio, Maurizio
- Mandelli, Emanuele (1891-1970)
- Mander, Noel Pike (1912-2005)
- Mander, Richard Yates (1862-)
- Mander Ltd, N. P.
- Manescau, Jean Camille Eugene (-1940)
- Manestie, Edward
- Manfield, Arthur Sheppard (1879-)
- Manhire, Wilson (1883-1942)
- Manicke, Dr Dietrich (1923-)
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- Manière, Léon (-1954)
- Mankell, Gustaf Adolf (1812-1880)
- Mankell, Henning (1868-1930)
- Mann, Alfred (1875-)
- Mann, Dr Arthur Henry (1850-)
- Mann, Colin
- Mann, Frederic George (1899-)
- Mann, George Howard (1868-)
- Mann, Georg Matthias (1717-1750)
- Mann, Lionel Frederic (1927-)
- Mann, Richard (1837-1869)
- Mannee, Jan (1962-)
- Manneke, Daniël (Daan) (1939-)
- Mannino, Franco (1924-)
- Manookin, Robert Park (1918-1997)
- Mansfield, James
- Mansfield, Kenneth Zoellin (1932-)
- Mansfield, Dr Orlando Augustine (1863-1936)
- Mansfield, Purcell James (1889-1968)
- Mansfield-Haysom, Robert G. B. (1874-)
- Månsson, Bert
- Mant, Henry George (1894-)
- Mantels, Johannes
- Manterfield, Charles Harold (1896-)
- Mantica, Francesco (1875-1970)
- Mantrant, Emmanuel Marie Joseph (1866-1953)
- Manz, Dr Paul Otto (1919-2009)
- Manzanares, Jacinto Ruiz de (1872-1937)
- Manzino, Giuseppe (1929-1992)
- Maple, Wilfred Norman (c1892-)
- Maquaire, Lazare Auguste (1872-1906)
- Mar, Normal del
- Marais, Stephanus le Roux
- Marbeck, Dr John (1523-c1585)
- Marcello, Benedetto (1686-1739)
- Marcero, Teo
- Marchal, Andre (1894-)
- Marchand, Louis (1669-1732)
- Marchant, Dr Arthur William (1850-1921)
- Marchant, Charles George (1857-)
- Marchant, J. C. le
- Marchant, Robert Hugh (1916-)
- Marchant, Dr Stanley (1883-)
- Marchot, Victor
- Marcianò, Sergio (1922-)
- Marcilly, Paul (1890-1982)
- Marckhl, Dr Erich (1902-1980)
- Marco, Tomás (1942-)
- Marcus, Mary
- Marcussen, Kjell (1952-)
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Organist 
Organist & composer 
Composer 
Organ builder 
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