A. montana may refer to:
Acacia montana, mallee wattle, an Australian shrub Acromantis montana, a praying mantis Actinodaphne montana, a plant in the family Lauraceae Agathis montana, the Mount Panié kauri, a species of conifer of the family Araucariaceae Agyneta montana, a sheet weaver (spider) Ambulyx montana, a moth of the family Sphingidae Anastrangalia montana, a beetle Annona montana, mountain soursop, a plant of the custard apple family Anodonthyla montana, a frog of the family Microhylidae Anthene montana, a butterfly in the family Lycaenidae Anthyllis montana, mountain kidney vetch Apatophysis montana, a beetle of the family Cerambycidae Araucaria montana, a conifer Arenaria montana, mountain sandwort Argentulia montana, a moth Arnica montana, Wolf's bane, or mountain tobacco