Proposed is a refrigerator. The refrigerator may include a cabinet (100) having a storage space (121), and a machine room (201) disposed below the storage space (121). The machine room (201) may include a compressor (610), a condenser (620), and a heat dissipation fan (611) to implement a cooling system, and have an inlet (225a) and an outlet (225b) formed on a front surface thereof. In addition, the compressor (610) and the heat dissipation fan (611) are disposed at the rear of the machine room (201), and the compressor (610) may be disposed in a space partitioned from a space in which the condenser (620) is disposed.