A power receiving device includes: a power receiving unit receiving electric power from an external power transmitting unit contactlessly; a first coil; a first shielding wall surrounding the first coil; a first device; a first shielding casing having the first device accommodated therein, the first shielding casing being also disposed inside the first shielding wall; and a first wiring connected to the first device and extending from inside the first shielding casing to outside the first shielding casing, and also pulled outside the first shielding wall, the first shielding casing having an external surface including a first opposite portion closer to the first shielding wall than the first coil, the first shielding wall having a first region opposite to the first opposite portion, the first region having a first hole, the first wiring being pulled outside the first shielding wall through the first hole.