A display device for a vehicle includes: an irradiation unit configured to irradiate a display light for an occupant of the vehicle to display an image; and a storage unit housing the irradiation unit so as to expose a display screen to which the display light is irradiated. The storage unit has an air intake port to take in air and an air discharge port to discharge the air. The display device includes a confluence portion configured to merge a first exhaust air discharged from the air discharge port and a second exhaust air discharged from an air conditioner for a cabin of the vehicle through an air outlet arranged in the cabin. The confluence portion is defined such that a first flow direction of the first exhaust air and a second flow direction of the second exhaust air coincide with each other.