A branch connector is capable of preventing cable breakage when subjected to vibration or shock. The branch connector (1) includes a pair of split housings capable of opening and closing with respect to each other, a relay contact (40) supported by the split housings and connecting electrically to a cable guided by the split housings in a closed state, and a cable holder, formed in the split housings to hold the cable, including a tight cable holder on the side closer to the relay contact (40) to hold the cable so that movement of the cable in a radial direction is relatively smaller when the split housings are in the closed state and a loose cable holder on the side farther from the relay contact (40) to hold the cable so that movement of the cable in a radial direction is relatively larger when the split housings are in the closed state.