| Atheens | Athenian |
| Athelstan van Engeland | Athelstan of England |
| Athena | Athena |
| Athenaeum Illustre | Universiteit van Amsterdam |
| Athenaeus van Naucratis | Athenaeus |
| Athenagoras van Athene | Athenagoras of Athens |
| Athene | Athens |
| Athener | Athenian |
| atheneum | high school |
| Athenia | SS Athenia |
| Athens | Athens |
| Atherton Tableland | Atherton Tableland |
| Athetose | Athetosis |
| atheïsme | atheism |
| atheïst | atheist |
| atheïste | atheist |
| atheïstisch | atheistic |
| Athe•sme | Atheism |
| Athina Onassis de Miranda | Athina Roussel |
| Athinaikos | Athinaikos |
| Athis-Mons | Athis-Mons |
| Athletic Bilbao | Athletic Bilbao |
| Athlon | Athlon |
| Athos | Mount Athos |
| Athos-Aspis | Athos-Aspis |
| Athyriaceae | Athyriaceae |
| ATI | ATI Technologies |
| Atid | Atid |
| Atif Obaid | Atef Ebeid |
| Atik | Omicron Persei |
| ATIS | Automatic Terminal Information Service |
| Atisha | Atisha |
| Atitlan | Volcán Atitlán |
| Atiu | Atiu |
| Atjeh | Aceh |
| Atjehs | Acehnese |
| Atkins-dieet | Atkins Nutritional Approach |
| Atl | Atl |
| Atlant | Atlas |
| Atlant-Soyuz Airlines | Atlant-Soyuz Airlines |
| Atlanta Braves | Atlanta Braves |
| Atlanta Falcons | Atlanta Falcons |
| Atlanta Flames | Atlanta Flames |
| Atlanta Hawks | Atlanta Hawks |
| Atlanta Thrashers | Atlanta Thrashers |
| Atlantas Klaipėda | FK Atlantas |
| Atlantic | Atlantic |
| Atlanticum | Atlantic |
| Atlantikwall | Atlantic Wall |
| Atlantis | Atlantis |
| Atlantis FC Helsinki | Atlantis FC |
| Atlantisch | Atlantic |
| Atlantisch charter | Atlantic Charter |
| Atlantische klimop | Hedera hibernica |
| Atlantische koornaarvis | Atlantic silverside |
| Atlantische Oceaan | Atlantic |
| Atlantische scherpsnuithaai | Atlantic sharpnose shark |
| Atlantische zalm | Salmon |
| atlas | atlas |
| Atlas Guadalajara | Fútbol Club Atlas |
| Atlasceder | Atlas Cedar |
| Atlasgebergte | Atlas |
| Atlasjet | Atlasjet |
| Atlasleeuw | Barbary lion |
| Atlasov | Atlasov Island |
| Atlasvlinder | Attacus atlas |
| Atlaszijde | Atlas |
| Atlatl Cauac | Spearthrower Owl |
| atleet | athlete |
| atlete | athlete |
| atletiek | athletics |
| Atletiek op de Olympische Zomerspelen | Athletics at the Summer Olympics |
| atletisch | athletic |
| ATLS | Advanced Trauma Life Support |
| Atlántico | Atlántico Department |
| Atlántida | Atlántida |
| Atlético Bucaramanga | Atlético Bucaramanga |
| Atlético de Pinto | Club Atlético de Pinto |
| Atlético Huila | CD Atlético Huila |
| Atlético Junior | Atlético Junior |
| Atlético Madrid | Atlético Madrid |
| Atlético Madrid B | Atlético Madrid B |
| Atlético Mineiro | Clube Atlético Mineiro |
| Atlético Nacional | Atlético Nacional |
| Atlético Paranaense | Clube Atlético Paranaense |
| Atlético Petróleos Luanda | Atlético Petróleos Luanda |
| Atlético Sport Aviação | Atlético Sport Aviação |
| ATM | ATM |
| atmosfeer | atmosphere |
| atmosferisch | atmospheric |
