A joint connector includes a connector conductor part and an insulating housing for holding the connector conductor part and wire-side terminals to be connected to the connector conductor part. The insulating housing includes an outer wall (45) enclosing an accommodation space for accommodating wire-side terminals and separation walls dividing the accommodation space into terminal accommodating chambers (41). The separation walls include first separation walls (71) between the terminal accommodating chambers for respectively accommodating the wire-side terminals to be insulated without being shorted to each other and second separation walls (72) interposed between the terminal accommodating chambers for respectively accommodating the wire-side terminals to be shorted to each other. The first and second separation walls (71, 72) are shaped so that outer ends (71a) of the first separation walls (71) and outer ends (72a) of the second separation walls (72) are different in appearance.