A sliding window for a vehicle includes: a sliding panel with an electrical equipment, which is attached to a vehicle body in a slidable manner; a guide rail which is integrated with the vehicle body and extending in the slide direction of the sliding panel; and a sliding bracket which integrally includes a sliding portion coupled to the guide rail in a slidable manner and a fixed portion fixed to the sliding panel. Then, an electrical power supply cord is disposed along the guide rail to be extended and contracted in one direction, and the electrical power supply cord supplies electric power to the electrical equipment of the sliding panel.