The medial plantar artery (latin: arteria plantaris medialis) is the smaller terminal branch of the posterior tibial artery.
The medial plantar artery arises between the medial malleolus and the heel. At first the medial plantar artery runs deep to the abductor hallucis, later between it and the flexor digitorum brevis muscle, reaching the medial border of the hallux (big toe).
On its course the medial plantar artery gives off muscular branches and superficial digital branches.
The medial plantar artery with its branches supply the muscles of the big toe, and the skin in the medial region of the sole.