| Alpheidae | Knipsereje |
| Alpher-Bethe-Gamow paper | Alpher-Bethe-Gamow-afhandlingen |
| Alpi | Alperne |
| Alpine | Alpin |
| alpine chough | alpeallike |
| Alpine hut | Alpehytte |
| Alpinia galanga | Laos |
| Alps | Alperne |
| Alquines | Alken |
| already | allerede |
| Alsace | Alsace |
| Alsace wine | Alsace |
| Alsace-Lorraine | Alsace-Lorraine |
| Alsatia | Alsace |
| Alsatian | Schæferhund |
| Alsatian dog | Schæferhund |
| Alsatian language | Alsakser |
| Alsergrund | Alsergrund |
| also | også |
| Alstahaug | Alstahaug |
| Alta California | Californien |
| Alta capella | Stadsmusikant |
| Alta Car and Engineering Company | Alta |
| Altaelva | Altaelven |
| Altai | Altai |
| Altai gas pipeline | Altai |
| Altai Krai | Altaj kraj |
| Altai Mountains | Altai |
| Altai Republic | Altai |
| Altamont Free Concert | Altamont Free Concert |
| altar | alter |
| Altar cloth | Blad |
| Altar stone | Alteret |
| Altare | Alter |
| Altay | Altai |
| Altay Mountains | Altai |
| Altay people | Altai |
| Altena | Altena |
| Altenburg | Altenburg |
| Altenburger Land | Altenburg |
| alter | forandre |
| Alter-globalization | Den globaliseringskritiske bevægelse |
| Altera | Bjergpas |
| Altered state of consciousness | Trance |
| Alternate history | Kontrafaktisk historie |
| alternating current | vekselstrøm |
| Alternating group | Alternerende gruppe |
| alternative | alternativ |
| Alternative history | Kontrafaktisk historie |
| alternative material | alternativt materiale |
| Alternative medicine | Alternativ behandling |
| Alternative metal | Alternativ metal |
| alternative technology | alternativ teknologi |
| Alternative terms for free software | FOSS |
| Althing | Altinget |
| Altingiaceae | Altingiaceae |
| Altiplano | Plateau |
| altitude | højde |
| Altitude training | Højdetræning |
| Altmark Incident | Altmark-affæren |
| Alto flute | Altfløjte |
| alto saxophone | altsax |
| altogether | all |
| Altoparlante | Højttaler |
| Altruism | Altruisme |
| altruistic | altruistisk |
| Alu Alkhanov | Alu Alkhanov |
| alumina | aluminiumoxyd |
| aluminium | aluminium |
| Aluminium bromide | Aluminiumbromid |
| aluminium container | aluminiumbakke |
| aluminium content | aluminiumindhold |
| aluminium foil | alufolie |
| aluminium industry | aluminiumindustri |
| Aluminium oxide | Aluminiumoxid |
| Aluminothermic reaction | Termit |
| aluminum | aluminium |
