A display control device includes a display region setting unit, a priority setting unit, and a display control unit. When a positional relationship between a plurality of display objects on a plurality of display regions changes in size or the plurality of display regions and display objects are within a predetermined distance, the display control unit, when the priority of the plurality of display objects is different from each other, changes the attribute information relating to the display objects from visible to invisible in accordance with the priority, and hides the display objects changed to be invisible as the attribute information, and when the priority of the plurality of display objects displayed on the plurality of display regions is not different from each other, does not change the attribute information relating to the display objects from visible to invisible, and cancels change in size of the plurality of display regions.