A. montanus

A. montanus may refer to:


 * Acanthus montanus, or mountain thistle
 * Adaina montanus, a moth
 * Aenetus montanus, a moth
 * Agapetus montanus, a caddisfly
 * Alsodes montanus, a frog
 * Anthodiscus montanus, a plant of the family Caryocaraceae
 * Araeococcus montanus, a synonym of Pseudaraeococcus montanus, a plant of the family Bromeliaceae
 * Astylosternus montanus, a frog