Abstract: A retractable cup holder has a tray for receiving a bottom of a cup, a support for holding a barrel of the cup, the support being superimposed on the tray when retracted and being raised up, in use, from the tray to a height necessary for holding the cup. A retainer locks, in use, the support in the raised-up position and is allowed to unlock the support through retraction motion of the cup holder. Thus, in use, the cup is sufficiently held in position and backlash of the support due to vibrations during travel is prevented.