| Achariaceae | Acharipallam | Acharkut, Tavush |
| Acharnarsapur, Gangawati | Acharnes | Achartimmapur, Koppal |
| Acharya (bướm đêm) | Acharya crassicornis | Acharya franconia |
| Acharya Rajneesh | Achatia | Achatia confusa |
| Achatia demissa | Achatia distincta | Achatia evicta |
| Achatia funebris | Achatia infidelis | Achatia infructuosa |
| Achatia latex | Achatia mucens | Achatia multifaria |
| Achatia rileyana | Achatia sectilana | Achatia sectilis |
| Achatia spoliata | Achatia vitis | Achatia vomerina |
| Achatina albopicta | Achatina fulica | Achatina vignoniana |
| Achatinella apexfulva | Achatinella bellula | Achatinella buddii |
| Achatinella bulimoides | Achatinella byronii | Achatinella caesia |
| Achatinella casta | Achatinella concavospira | Achatinella curta |
| Achatinella decipiens | Achatinella decora | Achatinella dimorpha |
| Achatinella elegans | Achatinella fulgens | Achatinella fuscobasis |
| Achatinella juddii | Achatinella juncea | Achatinella lehuiensis |
| Achatinella leucorraphe | Achatinella leucorrhaphe | Achatinella lila |
| Achatinella livida | Achatinella lorata | Achatinella mustelina |
| Achatinella papyracea | Achatinella phaeozona | Achatinella pulcherrima |
| Achatinella sowerbyana | Achatinella spaldingi | Achatinella stewartii |
| Achatinella swiftii | Achatinella taeniolata | Achatinella thaanumi |
| Achatinella turgida | Achatinella valida | Achatinella viridans |
| Achatnahalli, Kolar | Achatocarpaceae | Achatocarpus balansae |
| Achatocarpus brasiliensis | Achatocarpus brevipedicellatus | Achatocarpus gracilis |
| Achatocarpus hasslerianus | Achatocarpus microcarpus | Achatocarpus nigricans |
| Achatocarpus oaxacanus | Achatocarpus praecox | Achatocarpus pubescens |
| Achatodes | Achatodes juanae | Achatodes metaleuca |
| Achatodes sandix | Achatodes zeae | Achau |
| Achave, Ankola | Achères (Yvelines) | Achères, Cher |
| Achères, Yvelines | Achères-la-Forêt | Achí |
| Achberg | Acheilognathus | Acheilognathus barbatulus |
| Acheilognathus deignani | Acheilognathus elongatoides | Acheilognathus elongatus |
| Acheilognathus fasciodorsalis | Acheilognathus imfasciodorsalis | Acheilognathus kyphus |
| Acheilognathus longibarbatus | Acheilognathus longipinnis | Acheilognathus macropterus |
| Acheilognathus meridianus | Acheilognathus polyspinus | Acheilognathus tonkinensis |
| Achelata | Achelia adelpha | Achelia alaskensis |
| Achelia anomala | Achelia armata | Achelia aspera |
| Achelia assimilis | Achelia australiensis | Achelia barnardi |
| Achelia besnardi | Achelia bituberculata | Achelia borealis |
| Achelia boschi | Achelia brevicauda | Achelia brevirostris |
| Achelia bullosa | Achelia chelata | Achelia columnaris |
| Achelia communis | Achelia crurispinifera | Achelia cuneatis |
| Achelia curticauda | Achelia deodata | Achelia discoidea |
| Achelia dohrni | Achelia echinata | Achelia euryfrontalis |
| Achelia fernandeziana | Achelia gracilipes | Achelia gracilis |
| Achelia hariettae | Achelia hoekii | Achelia japonica |
| Achelia kiiensis | Achelia kurilensis | Achelia laevis |
| Achelia lagena | Achelia lagenaria | Achelia langi |
| Achelia latifrons | Achelia megova | Achelia mixta |
| Achelia nana | Achelia neotenica | Achelia orientalis |
| Achelia orpax | Achelia ovosetosa | Achelia parvula |
| Achelia pribilofensis | Achelia quadridentata | Achelia rostrata |
| Achelia salebrosa | Achelia sawayai | Achelia scabra |
| Achelia serratipalpis | Achelia setulosa | Achelia shepherdi |
| Achelia simplex | Achelia simplissima | Achelia socors |
| Achelia spatula | Achelia spicata | Achelia spinosa |
| Achelia spinoseta | Achelia sufflata | Achelia superba |
| Achelia tenuipes | Achelia transfuga | Achelia transfugoides |
| Achelia turba | Achelia vulgaris | Achelia watamu |
| Acheliana tropicalis | Achelion occidentalis | Achelousaurus |
| Achen (Moselle) | Achen, Moselle | Achenahalli, Madhugiri |
| Achenheim | Achenoderus octomaculatus | Achentina |
| Acheonus | Acheonus abbreviatus | Acheonus gracilis |
| Acheonus minutissimus | Achepalli, Bagepalli | Acherdoa |
| Acherdoa ferraria | Acherdoa ornata | Achernar |
| Acheron jianfanglinganus | Acheron loquax | Acheron trux |
| Acherontia atropos | Acherontiini | Acheroraptor |
| Achery, Aisne | Acheta domestica | Achetaria bicolor |
| Achetaria erecta | Achetaria floribunda | Achetaria guianensis |
| Achetaria latifolia | Achetaria ocymoides | Achetaria scutellarioides |
| Acheux-en-Amiénois | Acheux-en-Vimeu | Acheville |
| Achey | Achhalda | Achham (huyện) |
| Achhnera | Achicodonia eucodonioides | Achicourt |
| Achiet-le-Grand | Achiet-le-Petit | Achile |
| Achille | Achille Emaná | Achille Silvestrini |
| Achillea | Achillea abrotanoides | Achillea absinthoides |
| Achillea acuminata | Achillea aegyptiaca | Achillea ageratifolia |
| Achillea ageratum | Achillea albinea | Achillea aleppica |
| Achillea alexandri-regis | Achillea alpina | Achillea ambrosiaca |
| Achillea apiculata | Achillea arabica | Achillea armenorum |
| Achillea asiatica | Achillea aspleniifolia | Achillea atrata |
| Achillea aucheri | Achillea auriculata | Achillea baikalensis |
| Achillea barbeyana | Achillea barrelieri | Achillea biebersteinii |
| Achillea biserrata | Achillea boissieri | Achillea brachyphylla |
| Achillea bucharica | Achillea callichroa | Achillea cappadocica |
| Achillea carpatica | Achillea chamaecyparissus | Achillea chamaemelifolia |
| Achillea cheilanthifolia | Achillea chrysocoma | Achillea clavennae |
| Achillea clusiana | Achillea clypeolata | Achillea coarctata |
| Achillea collina | Achillea condensata | Achillea conferta |
| Achillea cretica | Achillea crithmifolia | Achillea cucullata |
| Achillea cuneatiloba | Achillea decolorans | Achillea decumbens |
| Achillea distans | Achillea erba | Achillea erba-rotta |
| Achillea eriophora | Achillea euxina | Achillea falcata |
| Achillea filipendulina | Achillea formosa | Achillea fraasii |
| Achillea fragrantissima | Achillea glaberrima | Achillea goniocephala |
| Achillea graja | Achillea grandifolia | Achillea gypsicola |
| Achillea haussknechtii | Achillea heterophylla | Achillea holosericea |
| Achillea horanszkyi | Achillea huber-morathii | Achillea illiczevski |
| Achillea impatiens | Achillea incognita | Achillea inundata |
| Achillea japonica | Achillea karatavica | Achillea kellalensis |
