| Asterales | Astrowce |
| Asteria | Asteria |
| Asteridae | Astrowe |
| Asterisk PBX | Asterisk |
| Asterix | Asterix |
| Asterix bij de Britten | Asterix w Brytanii |
| Asterix contra Caesar | Asterix kontra Cezar |
| Asterix de Galliër | Asterix |
| Asterix en Cleopatra | Asterix i Kleopatra |
| Asterix en de knallende ketel | Wielka bitwa Asteriksa |
| Asterix en de Olympische Spelen | Asterix na Olimpiadzie |
| Asterix en de Vikingen | Asterix i Wikingowie |
| Asterix verovert Rome | Dwanaście prac Asteriksa |
| asteroïde | asteroida |
| Astet | Astet |
| Asthenie | Astenia |
| Asthenosfeer | Astenosfera |
| Asti | Asti |
| Astillé | Astillé |
| Astis | Astis |
| ASTM International | ASTM |
| astma | astma |
| Astolphe de Custine | Astolphe de Custine |
| Aston | Aston |
| Aston Villa FC | Aston Villa Birmingham |
| Astorga | Astorga |
| Astrachan | Astrachań |
| Astraeus | Astraeus |
| Astrantia major | Jarzmianka większa |
| Astrid | Astryda |
| Astrid Lindgren | Astrid Lindgren |
| Astrid van België | Astrid Koburg |
| Astrid van Noorwegen | Astrid |
| Astrid van Zweden | Astrid |
| Astrobiologie | Astrobiologia |
| Astrocyt | Astrocyt |
| Astrodynamica | Astrodynamika |
| Astrofylliet | Astrofyllit |
| astrofysica | astrofizyka |
| Astrolabium | Astrolabium |
| Astrometrie | Astrometria |
| Astronomical Society of the Pacific | Towarzystwo Astronomiczne Pacyfiku |
| astronomie | astronomia |
| Astronomie van A tot Z | Przegląd zagadnień z zakresu astronomii i astronautyki |
| Astronomische Klok van Praag | Praski zegar astronomiczny |
| Astrophytum | Astrophytum |
| Astrud Gilberto | Astrud Gilberto |
| Astugue | Astugue |
| Asturias | Asturia |
| Asturisch | Język asturyjski |
| Asturië | Asturia |
| Astyages | Astyages |
| Astyanax | Astyanaks |
| Asté | Asté |
| Asuncion | Asunción |
| Asunción | Asunción |
| Asura | Asura |
| Asus | ASUS |
| Aswan | Asuan |
| Aswandam | Wysoka Tama |
| Aswoensdag | Popielec |
| Asymmetric Digital Subscriber Line | Asymmetric Digital Subscriber Line |
| Asymmetrische cryptografie | Kryptografia asymetryczna |
| Asymptotische vrijheid | Swoboda asymptotyczna |
| Asynchronous JavaScript and XML | AJAX |
| Asynchronous Transfer Mode | Asynchronous Transfer Mode |
| Asyndeton | Asyndeton |
| Asystolie | Asystolia |
| at | małpa |
| At the Drive-In | At the Drive-In |
| At The Gates | At the Gates |
| ATA | ATA |
| Atacama | Atakama |
| Atahualpa | Atahualpa |
| Atalanta Bergamo | Atalanta Bergamo |
| Atalante | Atalanta |
| Ataraxia | Ataraksja |
| Atari Jaguar | Atari Jaguar |
| Atari Lynx | Atari Lynx |
| Atari Teenage Riot | Atari Teenage Riot |
| Atascosa County | Hrabstwo Atascosa |
| Atatürk Olympisch Stadion | Atatürk Olimpiyat Stadyumu |
| Atauro | Atauro |
| Atbash | Szyfr AtBash |
| ATC | ATC |
| ATC code A | ATC |
| ATC code N | ATC |
| ATC-code | Klasyfikacja anatomiczno-terapeutyczno-chemiczna |
| Atchison County | Hrabstwo Atchison |
| Atelectase | Niedodma |
| atelier | warsztat |
| Atemi | Atemi |
| Aten-planetoïden | Grupa Atona |
| ATEX | ATEX |
| ateïsme | ateizm |
| Athabasca | Athabaska |
| Athabascameer | Athabaska |
| Athabaskische talen | Języki atapaskańskie |
| Athalarik | Atalaryk |
| Athamas | Atamas |
| Athanasius Kircher | Athanasius Kircher |
| Athanasius van Alexandrië | Atanazy Wielki |
| Athaulf | Ataulf |
| Athelas | Athelas |
| Athelstan van Engeland | Athelstan |
| Athena | Atena |
| Athenaeum Illustre | Universiteit van Amsterdam |
| Athenagoras van Athene | Atenagoras z Aten |
| Athene | Ateny |
| Athens | Athens |
| Athesans-Étroitefontaine | Athesans-Étroitefontaine |
| Athetose | Atetoza |
| atheïsme | ateizm |
| atheïst | bezbożnik |
| Athie | Athie |
| Athienville | Athienville |
| Athies | Athies |
| Athies-sous-Laon | Athies-sous-Laon |
| Athis | Athis |
| Athis-Mons | Athis-Mons |
| Athletic Bilbao | Athletic Bilbao |
| Athlon | AMD Athlon |
| Athos | Athos |
| Athos-Aspis | Athos-Aspis |
| Athose | Athose |
| Athée | Athée |
| Athée-sur-Cher | Athée-sur-Cher |
| ATI | ATI Technologies |
| ATIS | ATIS |
| Atisha | Atisa |
| Atitlan | Atitlán |
| Atiu | Atiu |
| Atjeh | Aceh |
| Atjehs | Aceh |
| Atlanta | Atlanta |
| Atlanta Braves | Atlanta Braves |
| Atlanta Falcons | Atlanta Falcons |
| Atlanta Hawks | Atlanta Hawks |
| Atlanta Thrashers | Atlanta Thrashers |
| Atlantas Klaipėda | FK Atlantas |
| Atlantic | Atlantic |
| Atlantic City | Atlantic City |
| Atlantic County | Hrabstwo Atlantic |
| Atlanticum | Atlantic |
| Atlantikwall | Wał Atlantycki |
| Atlantis | Atlantyda |
| Atlantisch | atlantycki |
| Atlantisch charter | Karta Atlantycka |
| Atlantische Oceaan | Ocean Atlantycki |
| Atlantische zalm | Łosoś szlachetny |
| Atlas | Atlas |
| Atlas Guadalajara | Atlas Guadalajara |
| Atlasgebergte | Atlas |
| Atlasvlinder | Attakus |
| Atlaszijde | Atlas |
| atleet | lekkoatleta |
| Atlántico | Atlántico |
| Atlántida | Atlantyda |
| Atlético Bucaramanga | Atletico Bucaramanga |
| Atlético Huila | Atletico Huila Neiva |
| Atlético Junior | Atlético Junior Barranquilla |
| Atlético Madrid | Atlético Madryt |
| Atlético Mineiro | Atlético Mineiro Belo Horizonte |
| Atlético Nacional | Atlético Nacional Medellín |
| Atlético Paranaense | Atlético Paranaense |
| Atlético Petróleos Luanda | Petro Atlético Luanda |
| Atlético Sport Aviação | ASA Luanda |
| ATM | ATM |
| Atman | Atman |
| Atoem | Atum |
| Atom | Atom |
| Atom Egoyan | Atom Egoyan |
| Atomaire massa-eenheid | Jednostka masy atomowej |
| Atomaire-emissiespectrometrie | Barwienie płomienia palnika |
| Atomic Kitten | Atomic Kitten |
| Atomium | Atomium |
| Aton | Aton |
| atoom | atom |
| Atoomfysica | Fizyka atomowa |
| Atoomgewicht | Masa atomowa |
| Atoomkrachtmicroscoop | Mikroskop sił atomowych |
| Atoommassa | Masa atomowa |
| Atoommodel van Bohr | Model atomu Bohra |
| atoomnummer | liczba atomowa |
| Atoomstraal | Promień atomowy |
| Atopie | Atopia |
| Atorvastatine | Atorwastatyna |
| ATP | ATP |
| ATP Awards | Nagrody ATP Tour |
| ATP Masters Series | ATP Masters Series |
| ATP-toernooi van Adelaide | Next Generation Adelaide International |
| ATP-toernooi van Amersfoort | Dutch Open Tennis |
| ATP-toernooi van Auckland | Heineken Open |
| ATP-toernooi van Delray Beach | Delray Beach ITC |
| ATP-toernooi van Doha | Qatar ExxonMobil Open |
| ATP-toernooi van Dubai | Dubai Tennis Championships |
| ATP-toernooi van Indian Wells | Pacific Life Open |
| ATP-toernooi van Madras | Chennai Open |
| ATP-toernooi van Madrid | Mutua Madrilena Masters Madrid |
| ATP-toernooi van Miami | Miami Masters |
| ATP-toernooi van Monte Carlo | Masters Series Monte Carlo |
| ATP-toernooi van New Haven | Pilot Pen Tennis |
| ATP-toernooi van Peking | China Open |
| ATP-toernooi van Rotterdam | ABN AMRO World Tennis Tournament |
| ATP-toernooi van Sydney | Medibank International |
| ATP-toernooi van Umag | Studena Croatia Open Umag |
| ATP-toernooi van Valencia | Open de Tenis Comunidad Valenciana |
| ATP-toernooi van Viña del Mar | Movistar Open |
| ATP-toernooi van Zagreb | PBZ Zagrzeb Indoors |
| ATRAC | ATRAC |
| Atrecht | Arras |
| Atrepsie | Atrepsja |
| Atreus | Atreus |
| Atri | Atri |
| Atria | Atria |
| Atromitos | Atromitos Pireus |
| Atropine | Atropina |
| Atropos | Atropos |
| ATS | Auto Technisches Spezialzubehör |
| ATSC | ATSC |
| Atsjinsk | Aczyńsk |
| ATTAC | ATTAC |
