A. juncea may refer to:
Achatinella juncea, an extinct snail Aeshna juncea, a hawker dragonfly Ammophila juncea, a thread-waisted wasp Anisacanthus juncea, a desert honeysuckle Anomatheca juncea, a southeastern African plant Aphyllanthes juncea, a Mediterranean plant Arenaria juncea, a plant with swollen stem nodes Armeria juncea, a sea pink Artemisia juncea, a herbaceous plant