| Arsenous acid | Arshad al-Umari | Arshad Warsi |
| Arshaq Sharqi Rural District | Arshaq-e Sharqi Rural District | Arsine |
| Arsole | Arson | Arsphenamine |
| ART | Art | ART america |
| Art Attack | Art Carney | Art Deco |
| ART Europe | ART europe | Art Gallery of Ontario |
| Art Infusion | Art Malik | Art Nouveau |
| Art Parkinson | ART Teenz | Art therapy |
| Art world | ART افلام | Art الليث |
| ART المفتوحة | ART الموسيقى | ART المنوعات |
| ART المناهج | ART المناسبات | ART الحكايات |
| ART الطرب | ART العالمية | ART سينما |
| Art سبورت | ART سبورت (الرياضية) | ART عين |
| Artamus | Artas, South Dakota | Artaxerxes I of Persia |
| Artémidore | ArtCyclopedia | Artem Mikoyan |
| Artem Milevskiy | Artemia | Artemidorus |
| Artemis | Artemisia | Artemisia absinthium |
| Artemisia annua | Artemisia atrata | Artemisia campestris |
| Artemisia dracunculus | Artemisia genipi | Artemisia Gentileschi |
| Artemisia glacialis | Artemisia herba-alba | Artemisia judaica |
| Artemisia lactiflora | Artemisia ludoviciana | Artemisia maritima |
| Artemisia pontica | Artemisia stelleriana | Artemisinin |
| Artemotil | Arterial arcades | Arterial blood |
| Arterial blood gas | Arterial catheter | Arterial hypertension |
| Arterial resistivity index | Arterial tree | Arteries |
| Arteriole | Arteriosclerosis | Arteriovenous fistula |
| Arteriovenous malformation | Arteriviridae | Arterivirus |
| Artery | Artery of bulb of penis | Artery of bulb of vestibule |
| Artery of round ligament of uterus | Artery to the ductus deferens | Artesia, Mississippi |
| Artesian aquifer | Artesian, South Dakota | Artesunate |
| Artesunate/amodiaquine | Arthralgia | Arthritis |
| Arthritis mutilans | Arthrodermataceae | Arthrodesis |
| Arthrogrryposis | Arthrogryposis | Arthrology |
| Arthropod | Arthropoda | Arthroscopy |
| Arthur (1981 film) | Arthur Aaron (footballer) | Arthur Andersen |
| Arthur Ashe | Arthur Balfour | Arthur Bernardes (football manager) |
| Arthur Bisguier | Arthur Boka | Arthur C. Clarke |
| Arthur C. Clarke Award | Arthur Casagrande | Arthur Cayley |
| Arthur Compton | Arthur Conan Doyle | Arthur Cox (footballer) |
| Arthur Cronquist | Arthur de Gobineau | Arthur Demarest |
| Arthur Dimmesdale | Arthur Eddington | Arthur Eichengrün |
| Arthur Evans | Arthur Golden | Arthur Harden |
| Arthur Hays Sulzberger | Arthur Henderson | Arthur Henry Reginald Buller |
| Arthur Holmes | Arthur Honegger | Arthur Huber-Morath |
| Arthur J. Arberry | Arthur Jaffe | Arthur Jeffery |
| Arthur john arberry | Arthur John Arberry | Arthur Johnson (manager) |
| Arthur Kingsley Porter | Arthur Koestler | Arthur Kornberg |
| Arthur Laffer | Arthur Leonard Schawlow | Arthur Miller |
| Arthur Numan | Arthur Ponsonby, 1st Baron Ponsonby of Shulbrede | Arthur Q. Bryan |
| Arthur Ravenel Jr. Bridge | Arthur Rimbaud | Arthur Rubinstein |
| Arthur Ruppin | Arthur Scherbius | Arthur Schmidt (film editor) |
| Arthur Schnitzler | Arthur Schopenhauer | Arthur Schuster |
| Arthur Seyss-Inquart | Arthur Stanley Eddington | Arthur Stanley Tritton |
| Arthur Surridge Hunt | Arthur Tansley | Arthur Township, Michigan |
| Arthur Waskow | Arthur Wellesley, 1st Duke of Wellington | Arthur Whitten Brown |
| Arthur William Hill | Arthur Wynne | Arthur, Illinois |
| Arthur, Iowa | Arthur, Nebraska | Arthur, North Dakota |
| Arthur, Wisconsin | Arthus reaction | Artibeus jamaicensis |
| Article (publishing) | Article 301 (Turkish Penal Code) | Article 9 of the Japanese Constitution |
| Articular capsule | Articular capsule of the knee joint | Articular disk |
| Articulated robot | Artificial bone | Artificial brain |
| Artificial cardiac pacemaker | Artificial consciousness | Artificial demand |
| Artificial flower | Artificial gene synthesis | Artificial heart |
| Artificial induction of immunity | Artificial insemination | Artificial intelligence |
| Artificial island | Artificial kidney | Artificial language |
| Artificial life | Artificial limb | Artificial lung |
| Artificial neural network | Artificial organ | Artificial reef |
| Artificial seawater | Artificial skin | Artificial urinary bladder |
| Artificial uterus | Artificial vagina | Artificially Expanded Genetic Information System |
| Artillery | Artillery battery | Artillery fuze |
| Artinskian | Artiocetus | Artiodactyla |
| Artisan | Artistic | Artistic License |
| Artistic rendering | Artjoms Rudņevs | Arto Javanainen |
| Arto Paasilinna | Arto Saari | Artocarpeae |
| Artocarpus | Artocarpus altilis | Artocarpus heterophyllus |
| Artocarpus thailandicus | Artolsheim | ARTPOP |
| Artpop | ArtRave: The Artpop Ball | Artroeite |
| Arts and Crafts movement | Arts and Humanities Data Service | Arts and Humanities Research Council |
| Artsem Karalek | Artturi Ilmari Virtanen | Artur Avila |
| Artur Balder | Artur Boruc | Artur Geworkýan |
| Artur Jorge (footballer) | Artur Lundkvist | Artur Moraes |
| Artur Phleps | Artur Sobiech | Artur Wichniarek |
| Arturo Coddou | Arturo Fernández Meyzán | Arturo Ithurralde |
| Arturo Norambuena | Arturo Ricci | Arturo Salah |
| Arturo Silvestri | Arturo Torres Carrasco | Arturo Uslar Pietri |
| Arturo Vidal | Artvin Province | ArtX |
| Artyom Filiposyan | Aruba | Aruban florin |
| Arum | Arum apulum | Arum byzantinum |
| Arum creticum | Arum cylindraceum | Arum cyrenaicum |
| Arum dioscoridis | Arum discolor | Arum elongatum |
| Arum euxinum | Arum gratum | Arum hainesii |
| Arum hygrophilum | Arum idaeum | Arum italicum |
| Arum jacquemontii | Arum korolkowii | Arum maculatum |
| Arum megobrebi | Arum nigrum | Arum orientale |
| Arum palaestinum | Arum pictum | Arum punctatum |
| Arum purpureospathum | Arum rupicola | Arum sintenisii |
| Arum sooi | Arum trifoliatum | Arun Jaitley |
| Aruna Dindane | Arundel, Quebec | Arundhati Roy |
| Arundo | Arundo donax | Arundo formosana |
| Arundo plinii | Arundo plinni | ARV1 |
