In anatomy, adduction describes a movement in which a body part is brought towards the midline of the body or, in the case of the fingers and toes, towards the axis of a limb. The term derives from the Latin adducere, "to draw towards".

Classic examples are bringing the leg towards the standing-leg axis or bringing the arms together in front of the chest. In most joints, adduction is the counterpart of abduction. The associated muscles are called adductors and are usually located on the side of the joint facing the body.