| Active | Active (kulle) | Active (strömfåra) |
| Active 24 | Active Biotech | Active Capital |
| Active Capital AB | Active Desktop | Active Directory |
| Active Media Group | Active metabolic rate | Active Pass |
| Active Phased Array Radar | Active Reef | Active Server Pages |
| Active set | Active set-metoden | Active site |
| Active Sound | Active Time Battle | Active X |
| Active, estrecho | Active, roca | Active24 |
| ActiveQt | ActiveX | Actividades de Construcción y Servicios |
| Actividades de Construcción y Servicios S.A. | Activision | Activision Blizzard |
| Activision Gamemaker | Activity | Activity (travhäst) |
| Activity Pub | Activitypub | ActivityPub |
| Actizera | Actizera ahasveros | Actizera anisophthalma |
| Actizera arsacia | Actizera atrigemmata | Actizera endymion |
| Actizera grumi | Actizera lucida | Actizera panaegides |
| Actizera panagaea | Actizera stellata | Actizera taygetica |
| Actizona | Actizona borealis | Actizona chuskae |
| Actizona trifoveatum | Actlzayanca | Actlzayanca de Hidalgo |
| Actoceles abscondita | Actoceles georgiana | Actocetor |
| Actocetor afrus | Actocetor anormalipennis | Actocetor beckeri |
| Actocetor decemugttatus | Actocetor hova | Actocetor indicus |
| Actocetor lindneri | Actocetor margaritatus | Actocetor nigrifinis |
| Actocetor panelii | Actocetor toniatabae | Actocetor yaromi |
| Actodromas bairdii | Actol | Acton |
| Acton (berg) | Acton (community i Storbritannien, Wales) | Acton (del av en befolkad plats) |
| Acton (distrikt i Storbritannien, England, Cheshire East) | Acton (kommun) | Acton (olika betydelser) |
| Acton (ort i Storbritannien, England, Shropshire) | Acton and Old Felton | Acton Beauchamp |
| Acton Bell | Acton Bjørn | Acton Bridge |
| Acton Bridge (ort) | Acton Burnell | Acton Burnell Castle |
| Acton Green | Acton Park | Acton Round |
| Acton Scott | Acton Smee Ayrton | Acton Trussell |
| Acton Trussell and Bednall | Acton Turville | Acton Turville (ort) |
| Acton Vale | Acton Vale (kommun) | Acton Vale (ort) |
| Acton, Canberra | Acton, Cheshire | Acton, Cheshire West and Chester |
| Acton, John | Acton, John Dalberg-Acton, 1:e baron | Acton, Kalifornien |
| Acton, London | Acton, Maine | Acton, Massachusetts |
| Acton, Middlesex | Acton, Mount | Acton, Québec |
| Acton, Shropshire | Acton, Suffolk | Acton, Wrexham |
| Actoniscus lindahli | Actoniscus tuberculatus | Actopan |
| Actopan (kommun i Mexiko, Hidalgo, lat 20,28, long -98,92) | Actopan (kommun i Mexiko, Veracruz, lat 19,53, long -96,51) | Actopan (ort i Mexiko, Hidalgo, Actopan, lat 20,27, long -98,94) |
| Actopan (ort i Mexiko, Morelos) | Actopan (ort i Mexiko, Veracruz, Actopan, lat 19,50, long -96,62) | Actopan (ort i Mexiko, Veracruz, Tlacotepec de Mejía) |
| Actopan, Actopan | Actopan, Hidalgo | Actopan, Morelos |
| Actopan, Tlacotepec de Mejía | Actophilornis | Actophilornis africanus |
| Actophilornis albinucha | Actophylla | Actophylla varendorffiana |
| Actoplanes canniformis | Actoplanes grandis | Actoplanes ridleyi |
| Actopsyllus | Actopsyllus longipes | ACTOR |
| Actor | Actora aestuum | Actora cinerascens |
| Actora ferruginea | Actora flavipes | Actornithophilus |
| Actornithophilus bicolor | Actornithophilus ceruleus | Actornithophilus grandiceps |
| Actornithophilus hoplopteri | Actornithophilus limosae | Actornithophilus multisetosus |
| Actornithophilus ochraceus | Actornithophilus paludosus | Actornithophilus pediculoides |
| Actornithophilus piceus | Actornithophilus pustulosus | Actornithophilus spinulosus |
| Actornithophilus totani | Actornithophilus umbrinus | Actors Studio |
| Actorthia | Actorthia ahngeri | Actorthia canescens |
| Actorthia efflatouni | Actorthia flavipennis | Actorthia frontata |
| Actorthia kerzhneri | Actorthia khedivialis | Actorthia kozlovi |
| Actorthia lacteipennis | Actorthia lucidipennis | Actorthia micans |
| Actorthia nigra | Actorthia olivierii | Actorthia pulchella |
| Actraiser | ActRaiser | Actraiser 2 |
| Actress | Actrix | Actrix dissimulatrix |
| Actrotomofil | Actrotomofili | Acts of the Unspeakable |
| Acts of Union 1707 | ACTU | Actual Miles |
| Actual Miles: Henley's Greatest Hits | Actually | Actuant |
| Actumnus | Actumnus obesus | Actun Tunichil Muknal |
| Actus reus | Actus Tragicus | Actus Tragicus (serieskapargrupp) |
| Actus tragicus av Bach | Actus Tragicus av Bach | Actus Tragicus av J. S. Bach |
| Actus Tragicus av J.S. Bach | ACTUV | Acu |
| Acuaco | Acuaco (ort) | Acuamanala |
| Acuamanala de Miguel Hidalgo | Acuan acuminata | Acuan arsenei |
| Acuan bahamense | Acuan bicornutum | Acuan cooleyi |
| Acuan covillei | Acuan depressa | Acuan depressum |
| Acuan fallax | Acuan fendleri | Acuan fruticosum |
| Acuan glandulosum | Acuan guadeloupense | Acuan illinoense |
| Acuan insulare | Acuan interior | Acuan jamesii |
| Acuan latum | Acuan leptolobum | Acuan obtusa |
| Acuan oligospermum | Acuan painteri | Acuan palmeri |
| Acuan pringlei | Acuan pumilum | Acuan reticulatum |
| Acuan subulatum | Acuan texanum | Acuan tracyi |
| Acuan velutinum | Acuan virgatum | Acuania arborescens |
| Acuapa | Acuapa (ort i Mexiko, Hidalgo, Tlanchinol) | Acuapa (ort i Mexiko, Veracruz, Soledad Atzompa) |
| Acuapa (ort i Mexiko, Veracruz, Zongolica) | Acuapa, Hidalgo | Acuapa, Soledad Atzompa |
| Acuapa, Zongolica | Acuaria | Acuaria skrjabini |
| Acuaria spiralis | Acuaria uncinata | Acuariidae |
| Acuatella | Acuatella vestituda | Acuautepec o Agua de la Caña |
| Acuautepec o Agua de la Cana | Acuautla | Acuautla (ort i Mexiko) |
| Acuautla, Hidalgo | Acuayucan | Acuítzio del Canje |
| Acuña | Acuña (auktor) | Acuña (ö) |
| Acuña (kommun) | Acuña (olika betydelser 2) | Acuña (olika betydelser) |
| Acuña (udde) | Acuña Island | Acuña Rocks |
| Acuña, islote | Acuña, punta | Acubens |
| Acucena | Acucha de Cajoncitos | Acude Acarape do Meio |
| Acude Acarau Mirim | Acude Aires de Sousa | Acude Araras |
| Acude Banabuiu | Acude Brumado | Acude Caxitore |
| Acude Choro Limao | Acude do Jatoba | Acude Engenheiro Arcoverde |
| Acude Flamengo | Acude Gaviao | Acude General Sampaio |
| Acude Lima Campos | Acude Novo | Acude Pedras Brancas |
| Acude Pentecoste | Acude Quixeramobim | Acude Riacho do Sangue |
| Acude Sabugi | Acude Salao | Acude Santana |
| Acude Santo Antonio | Acude Sao Mateus | Acude Sume |
| Acude Tatajuba | Acude Tucunduba | Acueducto |
