A wearable electrode includes: a garment (10) including an outer member (11) and a backing member (12) configured to cover at least a part of an inner surface of the outer member (11) and an electrode unit (45) configured to come into contact with a living body (P) clothed in the garment (10) to acquire a biological signal emitted by the living body (P) and attached to an opposite side of the backing member (12) from the outer member (11). The outer member (11) and the backing member (12) are connected to each other in a part (30) other than a part of the backing member (12), to which the electrode unit (45) is attached.