A connector has contacts, a housing holding the contacts, and a holder member fixed to the housing and is adapted to be fitted with a mating connector along a predetermined fitting direction. The housing has a first lateral portion on a side fitted with the mating connector and a second lateral portion on the other side opposite thereto. Each of the contacts has contact press-fit portions press-fitted into the housing from the side of a second lateral portion. The holder member has a restricting portion which is arranged adjacent to the contact on the side of the second lateral portion in the fitting direction and which restricts movement of the contact toward the second lateral portion.