| Aton | Athos |
| ATP | ATP |
| atrazin | atrazin |
| Atreus | Átreus |
| Atropin | Atropin |
| Attaché | Přidělenec |
| atten | osmnáct |
| attende | osmnáctý |
| Attentat | Atentát |
| Atticus | Atika |
| Attika | Attika |
| Attila | Attila |
| attribut | vlastnost |
| attrå | toužit |
| AU | AU |
| Aube | Aube |
| aubergine | lilek |
| Auckland | Auckland |
| Auckland Grammar School | Auckland Grammar School |
| Aude | Aude |
| Audhumbla | Audhumla |
| Audi | Audi |
| Audioslave | Audioslave |
| audiovisuelle medier | audiovizuální médium |
| audiovisuelt udstyr | audiovizuální technika |
| Audrey Hepburn | Audrey Hepburn |
| Augsburg | Augsburg |
| Augur | Augur |
| august | srpen |
| August Hermann Francke | August Hermann Francke |
| August Horch | August Horch |
| August Krogh | August Krogh |
| August Strindberg | August Strindberg |
| Augusta | Augsburg |
| Auguste Comte | Auguste Comte |
| Auguste Rodin | Auguste Rodin |
| Augustin | Augustinus |
| Augustin Louis Cauchy | Augustin Louis Cauchy |
| Augusto Pinochet | Augusto Pinochet |
| Augustus | Augustus |
| Auktion | Aukce |
| Auktorbetegnelse | Autor |
| Auktorbetegnelser for biologi og mykologi | Seznam botaniků a mykologů dle zkratek |
| Auld Lang Syne | Auld Lang Syne |
| Aulnay-sous-Bois | Aulnay-sous-Bois |
| Aum | Ohm |
| Aung San Suu Kyi | Aung San Suu Kyi |
| Aurelian | Aurelianus |
| Aurillac | Aurillac |
| Aurora | Aurora |
| Aurskog-Høland | Aurskog-Høland |
| Auschwitz | Auschwitz - Birkenau |
| Aust-Agder | Aust-Agder |
| Austin | Austin |
| Australian Capital Territory | Teritorium hlavního města Austrálie |
| Australian Open | Australian Open |
| Australian Shepherd | Australský ovčák |
| Australien | Austrálie |
| Australopithecus | Australopithecus |
