The adductor hallucis (also adductor hallucis muscle, latin: musculus adductor hallucis) is a two-headed muscle of the sole of the foot.
The oblique head of the adductor hallucis originates from the cuboid bone, lateral cuneiform, and base of the second and third metatarsal bones, and form the long plantar ligament. The transverse head of the adductor hallucis originates from the second to fifth metatarsophalangeal joints. The adductor hallucis inserts at the base of the proximal phalanx of the hallux.
The adductor hallucis muscle takes part in adduction of the big toe.