According to one embodiment, an X-ray diagnostic apparatus includes an X-ray tube that generates X-rays, an X-ray detector that detects X-rays generated from the X-ray tube and transmitted through an object, a supporting mechanism supports the X-ray tube and the X-ray detector in directions to face each other, a display displays an X-ray image concerning the object based on an output from the X-ray detector, position specifying circuitry specifies a position of the face of a user who is visually recognizing the display, and moving circuitry moves the supporting mechanism to an imaging position corresponding to the specified position of the face of the user.