A mounting device for mounting a stand device under a ceiling in an operating room, comprising: incorporates a mounting apparatus extending in the longitudinal direction along a mounting axis configured to bear a connection component of the stand device, in particular a spindle； and a ceiling flange configured to mount the mounting apparatus under the ceiling and to support the stand device on the ceiling； wherein the ceiling flange is mountable in different mounting positions along the mounting axis relative to the mounting apparatus on the mounting apparatus in a way that the mounting device is configured to hold the stand device in a height variable manner in different, in particular predefined, height positions. The invention further relates to a mounting system including such a mounting device.
