Vehicle door structure

A vehicle door structure, comprising:

• a door inner panel that forms a surface of the vehicle door structure on a vehicle cabin inner side;
• a door window that opens and closes a window opening located above a beltline;
• a front guide rail that holds the door window while allowing a raising and lowering operation of the door window;
• and
• a guide rail support portion that fixes the front guide rail to the door inner panel, wherein
• the guide rail support portion includes
• a first section that is fixed to a front face portion of the door inner panel,
• a second section that extends rearward from a vehicle-width-direction inner side of the first section, and
• a third section that is provided at a rear end portion of the second section and that is fixed to the front guide rail, and
• the second section and the third section are configured to be supported in a cantilever manner with respect to the first section.