- Abheiter, Hermann
- Absil, Jean
- Abt, Franz
- Ackermann, Louise-Victorine
- Adam, Adolphe
- Adami, Giuseppe
- Adams, Stephen
- Adenis-Colombeau, Eugène
- Adenis, Jules
- Adler, Samuel
- Agostini, Pietro Simone
- Aguilera, Ventura Ruiz
- Aicard, Jean
- Aiken, Conrad
- Akins, Zoë
- Albéniz, Isaac
- Alberus, Erasmus
- Albinoni, Tomaso
- Albo, B. Martín
- Aldighieri, Gottardo
- Alexandre, André
- Alexis, Willibald
- Alfano, Franco
- Allmers, Hermann
- Alnaes, Eyvind
- Altenberg, Peter
- Alvarez, Fermin María
- Alveri, Giovanni Battista
- Amadei, Albert
- Amalia, Anna
- Ambrose, Paul
- Amram, David Werner
- Anchieta, Juan de
- Andersen, Ludwig
- Andrews, Mark
- Anelli, Angelo
- Angiolini-Clericetti, Carlo
- Aniello, Pancrazio
- Anonymous Biblical Texts
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- Anschütz, Ernst
- Ansorge, Conrad
- Apollinaire, Guillaume
- Apolloni, Giovanni Filippo
- Araia, Francesco
- Arbuthnot, John
- Ardavín, Luis Fernández
- Arditi, Luigi
- Argento, Dominick
- Arnao, Antonio
- Arndt, Ernst Moritz
- Arne, Thomas Augustine
- Arniches, Carlos
- Arnim, Achim von
- Arnim, Bettina von
- Arnold, Carl
- Arnold, Matthew
- Arriaza, Juan Bautista
- Arrieta, Emilio
- Artale, Giuseppe
- Arvers, Félix
- Ascoli, Roberto
- Asensi, Juan Miguel
- Ashbrooke, Philip
- Asioli, Bonifazio
- Astorga, Emanuele d’
- Attenhofer, Carl
- Attwood, Thomas
- Auber, Daniel
- Aubert, Louis
- Auerbach, Ludwig Wilhelm
- Augier, Émile
- Aureli, Aurelio
- Auric, Georges
- Autran, Joseph Antoine
- Autreau, Jacques
- Avenant, Sir William d’
- Ayala, Adelardo López de
- Ayres, Frederic
- Aza, Vital
- Azcona, Agustín
