A compressor installation structure for a vehicle has: a battery that is disposed at a vehicle lower side of a floor portion of a vehicle cabin; a power unit that is disposed at one side in a vehicle front-rear direction with respect to the battery; and a compressor that is configured to be driven by electric power supplied thereto from the battery, and that is disposed at one side in the vehicle front-rear direction with respect to the battery, and that is disposed at another side in a vehicle front-rear direction with respect to the power unit.