| Ayr | Ayr |
| Ayran | Ayran |
| ayres' hawk eagle | Fleckenadler |
| Ayres' hawk-eagle | Fleckenadler |
| Ayrie | Nest |
| Ayrshire | Ayrshire |
| Ayrshire cattle | Ayrshire-Rind |
| Ayrton Senna | Ayrton Senna |
| Ayrton shunt | Ayrton-Nebenwiderstand |
| Aystetten | Aystetten |
| Aysén Region | Región de Aisén |
| Aythya | Tafelente |
| Aytos | Ajtos |
| Ayub Khan | Muhammed Ayub Khan |
| Ayumi Hamasaki | Ayumi Hamasaki |
| Ayurveda | Ayurveda |
| Ayurvedic | ayurvedisch |
| Ayurvedic medicine | ayurvedische Heilkunde |
| Ayurvedically | ayurvedisch |
| Ayutthaya | Ayutthaya |
| Ayutthaya historical park | Geschichtspark Ayutthaya |
| Ayutthaya Province | Ayutthaya |
| Ayvalık | Ayvalık |
| Aywaille | Aywaille |
| Ayyavazhi | Ayyavali |
| Ayyubid dynasty | Ayyubiden |
| Ayọ | Ayọ |
| AZ | AZ Alkmaar |
| AZ : Arizona - Phoenix | Arizona |
| Az Zawiyah Municipality | Az Zawiyah |
| Az Zubair | az-Zubair |
| Az Zubayr | Zubair |
| azacitidine | Azacitidin |
| azacyclopentane | Azacyclopentan |
| azacyclopropane | Azacyclopropan |
| Azad Kashmir | Asad Kaschmir |
| Azadi Stadium | Azadi Stadion |
| Azadi Tower | Freiheitsturm |
| Azadirachtin | Azadirachtin |
| Azahari Husin | Azahari bin Husin |
| Azalais de Porcairagues | Azalaïs de Porcairagues |
| azalea | Azalee |
| Azalea City | Azalea City |
| azalea leaf-miner | Azaleenmotte |
| Azalea Park | Azalea Park |
| azalea pink | azaleenrosa |
| Azande | Azande |
| Azania | Azania |
| azaperone | Azaperon |
| Azara's agouti | Azara-Aguti |
| Azara's fox | Pampasfuchs |
| Azara's spinetail | Azaraschlüpfer |
| Azara's zorro | Pampasfuchs |
| Azarmidokht | Azarmedukht |
| azaspirium chloride | Azaspiriumchlorid |
| Azathioprine | Azathioprin |
| azathioprine , AZA | Azathioprin , AZA |
| Azawakh | Azawakh |
| Azay-le-Rideau | Azay-le-Rideau |
| Azazel | Azazel |
| azbuka | Kyrilliza |
| Azelaic acid | Azelainsäure |
| azeotropic | azeotrop |
| Azeotropic distillation | Azeotroprektifikation |
| Azerat | Azerat |
| Azerbaidzhan | Aserbaidschan |
| Azerbaijan | Aserbaidschan |
| Azerbaijan Airlines | Azerbaijan Airlines |
