| Army General | General del Ejército |
| Army Group Centre | Grupo de Ejércitos Centro |
| Army Group South | Grupo de Ejércitos Sur |
| Army of Darkness | Army of Darkness |
| Army of Me | Army Of Me |
| Army of Tennessee | Ejército del Tennessee |
| Army of the Andes | Ejército de los Andes |
| Army of the Guardians of the Islamic Revolution | Cuerpos de la Guardia Revolucionaria Islámica |
| Army of the Republic of Bosnia and Herzegovina | Ejército de la República Bosnia-Herzegovina |
| Army of the Republic of Vietnam | Fuerzas Armadas de la República de Vietnam |
| Army of the Three Guarantees | Ejército Trigarante |
| Army of Venezuela | Ejército Libertador |
| Army One | Aeronaves presidenciales de los Estados Unidos |
| Army ranks and insignia of the Russian Federation | Empleos y divisas de las Fuerzas Armadas de la Federación Rusa |
| Army tank | Carro de combate |
| Arn Anderson | Martin Lunde |
| Arnac-Pompadour | Arnac-Pompadour |
| Arnaldo Forlani | Arnaldo Forlani |
| Arnaldo Ochoa | Arnaldo Ochoa Sánchez |
| Arnaldo Tamayo Méndez | Arnaldo Tamayo Méndez |
| Arnaldus de Villa Nova | Arnau de Villanova |
| Arnaud Amalric | Arnaldo Amalric |
| Arnaud di Pasquale | Arnaud di Pasquale |
| Arnaut Daniel | Arnaut Daniel |
| Arnay-le-Duc | Arnay-le-Duc |
| Arne Friedrich | Arne Friedrich |
| Arne Tiselius | Arne Wilhelm Kaurin Tiselius |
| Arnex-sur-Nyon | Arnex-sur-Nyon |
| Arnex-sur-Orbe | Arnex-sur-Orbe |
| Arnhem | Arnhem |
| Arnhem Land | Tierra de Arnhem |
| arnica | árnica |
| Arnica montana | Arnica montana |
| Arno | Arno |
| Arno Allan Penzias | Arno Allan Penzias |
| Arno Atoll | Arno |
| Arno Breker | Arno Breker |
| Arno Hintjens | Arno |
| Arno River | Arno |
| Arnold Böcklin | Arnold Böcklin |
| Arnold Gehlen | Arnold Gehlen |
| Arnold Janssen | Arnoldo Janssen |
| Arnold of Brescia | Arnaldo de Brescia |
| Arnold of Torroja | Arnaldo de Torroja |
| Arnold Rüütel | Arnold Rüütel |
| Arnold Schoenberg | Arnold Schönberg |
| Arnold Schwarzenegger | Arnold Schwarzenegger |
| Arnold Sommerfeld | Arnold Sommerfeld |
| Arnold van Gennep | Arnold van Gennep |
| Arnold-Chiari malformation | Malformación de Arnold-Chiari |
| Arnoldo Iguarán | Arnoldo Iguarán |
| Arnolfini Portrait | Retrato de Giovanni Arnolfini y su esposa |
| Arnolfo di Cambio | Arnolfo di Cambio |
| Arnor | Arnor |
| Arnstadt | Arnstadt |
| Arnulf | Arnulfo de Baviera |
| Arnulf of Carinthia | Arnulfo de Carintia |
| Arnulfo Arias | Arnulfo Arias Madrid |
| Arnuwanda I | Arnuanda I |
| Arnuwanda II | Arnuanda II |
| Arnuwanda III | Arnuanda III |
| Arnéguy | Arnéguy |
| Arnøya | Arnøy |
| Arogno | Arogno |
| Aroldo | Stiffelio |
| aroma | aroma |
| Aromanian language | Idioma arumano |
| Aromanians | Aromunes |
| aromatic | aromático |
| aromatic compound | compuestos aromáticos |
| Aromatic compounds | Hidrocarburo aromático |
| aromatic hydrocarbon | hidrocarburos aromáticos |
| aromatic substance | sustancia aromática |
| Aron Nimzowitsch | Aaron Nimzowitsch |
| Arona | Arona |
| Arorae | Arorae |
| ARoS Aarhus Kunstmuseum | ARoS |
| Arosa | Arosa |
| Arosvallen | Estadio Arosvallen |
| Aroue-Ithorots-Olhaïby | Aroue-Ithorots-Olhaïby |
| around | aproximadamente |
