Provided is an Achilles tendon support capable of suppressing a dorsiflexion of an ankle joint as well as suppressing a twist of the ankle joint. The Achilles tendon support includes: an inner support section for covering an Achilles tendon and both side edge portions thereof, upper portions of the inner support section being fastenable to each other on a front side of an upper ankle portion with a hook and loop fastener； and an outer support section for covering the Achilles tendon and both the side edge portions thereof in a range from a sole through a back heel portion, upper portions of the outer support section being fastenable to an outer surface of the inner support section with a hook and loop fastener.
