A. darwinii may refer to:

Abutilon darwinii, a shrub native to Brazil Acmella darwinii Alleloplasis darwinii Amphisbaena darwinii, the Darwin's worm lizard, a species of limbless lizard Arcoscalpellum darwinii Asteromphalus darwinii

See also A. darwini (disambiguation) Darwinii (disambiguation)