A vehicle door handle device, which is mounted on a side of a vehicle door facing a passenger compartment, includes: a door lock knob provided on a base member such that the door lock knob is pivotable between a locking position for placing the door in a locked state and an unlocking position for placing the door in an unlocked position; and a stopper provided on the base member between the locking position and the unlocking position for limiting pivoting movement of the door lock knob. The stopper has an elastic section, and the door lock knob has a locking surface section for abutting against the elastic section of the stopper when the door lock knob is in the locking position and an unlocking surface section for abutting against the elastic section of the stopper when the door lock knob is in the unlocking position.