| Arvsynd | Pecado original |
| Arvtagaren | El Legado |
| Arwen | Arwen |
| Aryabhata | Aryabhata |
| Arylgrupp | Grupo arilo |
| Arytmier | Trastornos del ritmo cardíaco |
| Arzawa | Arzawa |
| Arzier | Arzier |
| as | carroña |
| AS Bari | Associazione Sportiva Bari |
| AS Cannes | Association Sportive de Cannes Football |
| AS Casale | Associazione Sportiva Casale Calcio |
| AS Livorno Calcio | Associazione Sportiva Livorno Calcio |
| AS Monaco FC | Association Sportive de Monaco Football Club |
| AS Nancy Lorraine | Association Sportive Nancy-Lorraine |
| AS Roma | Associazione Sportiva Roma |
| AS Saint-Étienne | Association Sportive de Saint-Étienne Loire |
| As Sulaymaniyah | Suleimaniya |
| As-Sulaymaniyah | Suleimaniya |
| Asa Gray | Asa Gray |
| Asafa Powell | Asafa Powell |
| Asahi Shimbun | Asahi Shimbun |
| Asajj Ventress | Asajj Ventress |
| Asana | Asana |
| Asaph Hall | Asaph Hall |
| Asarone | Asarona |
| Asatro | Asatru |
| asbest | asbesto |
| asbestcement | cemento a base de amianto |
| asbestos | asbestosis |
| Asbets | Asbesto |
| Ascanio in Alba | Ascanio in Alba |
| Ascanius | Ascanio |
| Ascari | Ascari |
| Aschaffenburg | Aschaffenburg |
| ASCII | ASCII |
| ASCII-konst | Arte ASCII |
| Ascites | Ascitis |
| Ascoli Piceno | Provincia de Ascoli Piceno |
| Ascona | Ascona |
| Ascraeus Mons | Ascraeus Mons |
| Asdf | ASDF |
| ASEAN | ASEAN |
| ASEAN-staterna | ASEAN |
| aseptisk | aséptico |
| Asexualitet | Asexualidad |
| asexuell | asexual |
| Asexuell förökning | Reproducción asexual |
| asfalt | asfalto |
| Asgård | Asgard |
| Ash Ketchum | Ash Ketchum |
| Ash Sharqiyah | Provincia de Ash Sharqiyah |
| Ash-Sharqiyya | Provincia de Ash Sharqiyah |
| Ashanti | Ashanti |
| Ashantiregionen | Ashanti Douglas |
| Ashdod | Ashdod |
| Asheville | Asheville |
| Ashigaru | Ashigaru |
| Ashikaga Takauji | Ashikaga Takauji |
| Ashikaga Yoshiaki | Ashikaga Yoshiaki |
| Ashiko | Ashiko |
| Ashkelon | Ascalón |
| Ashlee Simpson | Ashlee Simpson |
| Ashley Cole | Ashley Cole |
| Ashley Judd | Ashley Judd |
| Ashley Tisdale | Ashley Tisdale |
| Ashmore- och Cartieröarna | Islas Ashmore y Cartier |
| Ashoka | Aśoka |
| Ashram | Ashram |
| Ashton Kutcher | Ashton Kutcher |
| Ashur | Assur |
| Ashurbanipal | Asurbanipal |
| Asia | Asia |
| Asia Argento | Asia Argento |
| Asia Carrera | Asia Carrera |
| Asian Kung-Fu Generation | Asian Kung-fu Generation |
| Asiana Airlines | Asiana Airlines |
| asiatisk | asiático |
