| Army of Me | Army of Me |
| Army of Mississippi | Armata del Mississippi |
| Army of Northern Virginia | Armata Confederata della Virginia Settentrionale |
| Army of Republika Srpska | Esercito della Republika Srpska |
| Army of Tennessee | Armata Confederata del Tennessee |
| Army of the Guardians of the Islamic Revolution | Pasdaran |
| Army of the Potomac | Armata del Potomac |
| Army of Virginia | Armata della Virginia |
| Army One | Army One |
| Army ordnance office | Waffenamt |
| Army tank | Carro armato |
| ARN | ARN |
| Arnac-Pompadour | Arnac-Pompadour |
| Arnaia | Arnaia |
| Arnaldo Forlani | Arnaldo Forlani |
| Arnaldus de Villa Nova | Arnaldo da Villanova |
| Arnaud | Arnold |
| Arnaut Daniel | Arnaut Daniel |
| Arnay-le-Duc | Arnay-le-Duc |
| Arnbruck | Arnbruck |
| Arne Friedrich | Arne Friedrich |
| Arne Tiselius | Arne Tiselius |
| Arneburg | Arneburg |
| Arnefrit of Friuli | Arnefrido |
| Arnex-sur-Nyon | Arnex-sur-Nyon |
| Arnex-sur-Orbe | Arnex-sur-Orbe |
| Arnhem | Arnhem |
| Arnhem Land | Arnhem Land |
| arnica | arnica |
| Arnica montana | Arnica montana |
| Arno | Arno |
| Arno Allan Penzias | Arno Penzias |
| Arno Atoll | Arno |
| Arno Hintjens | Arno |
| Arno River | Arno |
| Arnobius | Arnobio |
| Arnold | Arnold |
| Arnold Böcklin | Arnold Böcklin |
| Arnold de Lantins | Arnold de Lantins |
| Arnold Geulincx | Arnold Geulincx |
| Arnold Janssen | Arnold Janssen |
| Arnold of Brescia | Arnaldo da Brescia |
| Arnold of Selenhofen | Arnoldo di Selenhofen |
| 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 | Sindrome di Arnold-Chiari |
| Arnoldo Mondadori Editore | Arnoldo Mondadori Editore |
| Arnoldstein | Arnoldstein |
| Arnolfini Portrait | Ritratto dei coniugi Arnolfini |
| Arnolfo di Cambio | Arnolfo di Cambio |
| Arnor | Arnor |
| Arnouville | Arnouville |
| Arnsberg | Arnsberg |
| Arnschwang | Arnschwang |
| Arnstadt | Arnstadt |
| Arnstein | Arnstein |
| Arnstorf | Arnstorf |
| Arnulf | Arnolfo di Carinzia |
| Arnulf of Carinthia | Arnolfo di Carinzia |
| Arnutovce | Arnutovce |
| Arnuwanda II | Arnuwanda II |
| Arnuwanda III | Arnuwanda III |
| Arnéguy | Arnéguy |
| Arogno | Arogno |
| Aroldo | Stiffelio |
| aroma | aroma |
