A biomedical electrode including: an attachment sheet being elastically stretchable and contractible with an electrically insulating property on a back surface side, an adhesive surface suitable for attachment to the skin; a plurality of electrodes located apart from one another on the back surface side of the attachment sheet and exposed on the back surface side; a plurality of connecting parts located at a central part on the back surface side of the attachment sheet and covered with electrical insulation while being exposed toward a front surface side through openings of the attachment sheet; and electrode connecting wires located on the back surface side of the attachment sheet and covered with electrical insulation that electrically connect respective ones of the plurality of electrodes with corresponding ones of the plurality of connecting parts, wherein at least one of the electrode connecting wires extends in a stretchable, contractible, and bendable manner.