- Abel, Carl Friedrich (1823-1787)
- Abert, Johann Joseph (1832-1915)
- Abt, Franz (1819-1885)
- Adam, Adolphe (1803-1856)
- Adam, Louis (1758-1848)
- Adhémar, Abel de (1812-1851)
- Ahl, Gerhardt (1912-1967)
- Alary, Giulio Eug...Abrano (1814-1891)
- Albert, Eugen d' (1864-1932)
- Albrechtsberger, Johann Georg (1736-1809)
- Alcock, John (1715-1806)
- Allegri, Gregorio (1582-1652)
- Ancot, Jean (1799-1829)
- Anders, Erich (1883-1955)
- Andran, Edmond (1840-1901)
- André, Johann (1741-1799)
- André, Johann Anton (1775-1842)
- André, Julius (1808-1880)
- André, Ludwig (1858-1924)
- Anfossi, Pasquale (1727-1797)
- Angerer, Gottfried (1851-1909)
- Anglebert, Jean-Henri d' (1628-1691)
- Anna Amalia <Sachsen-Weimar-Eisenach, Herzogin> (1739-1807)
- Ansorge, Conrad (1862-1930)
- Arban, Jean-Baptiste (1825-1889)
- Arditi, Luigi (1822-1903)
- Arne, Michael (1741-1786)
- Arne, Thomas Augustine (1710-1778)
- Arnold, Samuel (1710-1802)
- Ascher, Joseph (1829-1869)
- Ashton, Algernon (1859-1937)
- Asioli, Bonifacio (1769-1832)
- Asioli, Luigi (ca. 1767-1815)
- Attenhofer, Carl (1837-1914)
- Auber, Daniel-François-Esprit (1782-1871)
- Aubery du Boulley, Prudent L. (1796-1870)
