A. darwini may refer to:
Acarterus darwini Actia darwini, a tachinid fly species Amasa darwini Amblyomma darwini Anastatus darwini Anaulacomera darwini Aniksosaurus darwini, a dinosaur species from what is now Chubut Province, Argentina Aprostocetus darwini Apteronemobius darwini Atropos darwini, a synonym for Trimeresurus strigatus, a venomous pitviper species found in southern India
See also A. darwinii (disambiguation) Darwini (disambiguation)