A. maxima may refer to:
Aerodramus maxima, a cave-nesting swift Alcadia maxima, a land snail Alucita maxima, a Libyan moth Anatoma maxima, a sea snail Apamea maxima, a moth native to western North America Architectonica maxima, a staircase shell Archontophoenix maxima, a palm endemic to Queensland Argonauta maxima, a pelagic octopus Aristolochia maxima, a New World plant Arthrospira maxima, a filamentous cyanobacterion Astrantia maxima, a perennial plant Atoposea maxima, a Colombian moth