A. lutea may refer to:
Acanthodoris lutea, a sea slug Acronicta lutea, a dagger moth Actinactia lutea, a tachinid fly Admetula lutea, a nutmeg snail Alcithoe lutea, a sea snail Aletris lutea, a medicinal plant Alphonsea lutea, a custard apple Anacolosa lutea, a woody plant Andrena lutea, a mining bee Anistylis lutea, a plant with yellow flowers Appendicula lutea, a tropical epiphyte Architectonica lutea, a staircase shell Arenitalea lutea, a marine bacterium from the genus of Arenitalea Argyrotheca lutea, a small lampshell Armillaria lutea, a honey mushroom Arugisa lutea, an owlet moth Asclepias lutea, a milkweed native to eastern North America Asphodeline lutea, a perennial plant Asplundia lutea, a plant endemic to Ecuador Assiminea lutea, a salt marsh snail Asteranthe lutea, a custard apple Asterina lutea, a sea star Asura lutea, a New Guinean moth Autochloris lutea, an owlet moth