Munzinger Sport As-Az
- Asada, Mao
- Asamoah, Gerald
- Asari, Junko
- Ascari, Alberto
- Aschenbach, Hans-Georg
- Aschmoneit, Dirk
- Asch, Roland
- Aschwanden, Sergei
- Asensio, Marco
- Ashe, Arthur
- Asher-Smith, Dina
- Ashford, Evelyn
- Ashour, Ramy
- Askamp, Gabriele
- Askamp, Marlies
- Asmussen, Cash
- Aspern, Dieter von
- Asprilla Hinestroza, Faustino
- Assauer, Rudi
- Assefa, Tigist
- Assinger, Armin
- Assmann, Matthias
- Astafei, Alina
- Astapkowitsch, Igor
- Astarloa Ascaribar, Igor
- Atouba, Timothee
- Attiyah, Nasser Al-
- Atubolu, Noah
- Atzori, Fernando
- Aubameyang, Pierre-Emerick
- Aubin, Serge
- Auböck, Felix
- Audehm, Gerd
- Auer, Hansjörg
- Auer, Lucas
- Auer, Sabine
- Auerswald, Ingrid
- Auffarth, Sandra
- Aufhauser, René
- Aufrecht, Pia-Luise
- Augenthaler, Klaus
- Auger-Aliassime, Félix
- Augert, Jean-Noël
- Augsburg, Natalie
- Augustinsson, Ludwig
- Auinger, August
- Aumann, Raimond
- Aunli, Berit
- Aunli, Ove
- Auriol, Didier
- Aussem, Cilly
- Austermühl, Birgitt
- Austin, Charles
- Austin, Tracy
- Autenrieth, Philipp
- Autio, Asko Antero
- Ave, Lindy
- Awdejenko, Gennadi
- Awerbuch, Alexander
- Awerin, Alexander
- Awerina, Tatjana
- Awilow, Nikolai
- Axmann, Heike
- Axt, Helga
- Ayala, Roberto
- Ayana, Almaz
- Ayew, André
- Ayhan, Kaan
- Ayhan, Sureyya
- Aymar, Luciana
- Aytekin, Deniz
- Ayuso, Juan
- Azarenka, Victoria
- Azinger, Paul
- Azizi, Khodadad
- Azkargorta, Xabier
- Azpilicueta, César