| Avogadro constant | Avogadros konstant |
| avoid | undgå |
| Avoidant personality disorder | Ængstelig personlighedsforstyrrelse |
| Avram Grant | Avraham Grant |
| Avril Lavigne | Avril Lavigne |
| Avro | Avro |
| Avro Lancaster | Avro Lancaster |
| AvtoVAZ | Lada |
| Awaji Island | Avaji |
| awake | vågne |
| awaken | vække |
| awareness | bevidsthed |
| away | væk |
| AWD-Arena | AWD-Arena |
| awe | ærefrygt |
| Awful din | Satan |
| awhile | lidt |
| axe | økse |
| Axel Oxenstierna | Axel Oxenstierna |
| Axial tilt | Banehældning |
| axiom | grundsætning |
| Axiom computer algebra system | Aksiom |
| Axiom Engine | Aksiom |
| Axiom of choice | Udvalgsaksiomet |
| axis | aksel |
| Axis of buoyancy | Plimsoll-mærke |
| Axis of evil | Ondskabens akse |
| Axis powers | Aksemagterne |
| Axis powers of World War II | Aksemagterne |
| Axl Rose | Axl Rose |
| axle | aksel |
| Axon | Akson |
| Ayaan Hirsi Ali | Ayaan Hirsi Ali |
| Ayad Allawi | Iyad Allawi |
| Ayatollah | Ayatollah |
| Aydın | Akko |
| aye | ja |
| Ayen | Ayen |
| Ayerbe | Ayerbe |
| Aymara | aymara |
| Ayn Rand | Ayn Rand |
| Ayr | Lake Eyre |
| Aythya | Taffeland |
| Ayutthaya | Ayutthaya |
| Ayutthaya historical park | Ayutthaya |
| Ayutthaya Province | Ayutthaya |
| Ayyavazhi | Ayyavazhi |
| Ayyubid dynasty | Ayyubide-dynastiet |
| AZ | AZ Alkmaar |
| Azawakh | Azawakh |
| Azerbaidzhan | Aserbajdsjan |
| Azerbaijan | Aserbajdsjan |
| Azerbaijani | Azeri |
| Azerbaijani language | Azeri |
| Azerbaijani people | Azeri |
| Azerbaijanian | Azeri |
| Azeri | Aserbajdsjansk |
| Azgayin Zhoghov | Assemblée Nationale |
| Azimuth | Azimut |
| Azkaban | Azkaban |
| Azmi Bishara | Azmi Bishara |
| Azo compound | Azofarvestof |
| Azores | Azorerne |
| Azores Is | Azorerne |
| Azov | Azovske Hav |
| Aztec | Azteker |
| Aztec Triple Alliance | Tripelalliancen |
| Azul Partido | Blå |
| Azure Tit | Azurmejse |
| Azurite | Glat Tidselkugle |
| Aérospatiale | Aérospatiale |
| Aérospatiale Alouette III | Alouette III |
| Aérospatiale Gazelle | Gazelle |
| Aérospatiale Puma | Puma |
| Aílton José Almeida | Ailton Almeida |
| Aïda | Aida |
| Aïr Mountains | Aïrbjergene |
