A reciprocating compressor comprising: a cylinder; and a suction muffler (130, 140) configured to receive refrigerant and to supply the refrigerant to the cylinder, the suction muffler comprising: a suction muffler body (131, 141) that defines a suction space configured to receive the refrigerant and a suction hole configured to receive the refrigerant into the suction muffler (130, 140); a suction pipe portion that is disposed inside the suction muffler body (131, 141) and that extends from the suction hole; a partition wall that is disposed at the suction muffler body (130, 140) and partitions the suction space into a first space and a second space, and a guide pipe that is disposed at the partition wall and defines a refrigerant passage in fluid communication with the first and second spaces (S1, S2), the guide pipe comprising: (i) a first pipe portion that extends from the partition wall to the first space, the first pipe portion having a first end for introducing the refrigerant suctioned from the suction hole and the suction pipe portion; and (ii) a second pipe portion that extends from the partition wall to the second space, characterized in that the first pipe portion comprises a resonance hole, and the second pipe portion has a second end for discharging the refrigerant passing through the guide pipe into the second space. a cylinder; and a suction muffler (130, 140) configured to receive refrigerant and to supply the refrigerant to the cylinder, the suction muffler comprising: a suction muffler body (131, 141) that defines a suction space configured to receive the refrigerant and a suction hole configured to receive the refrigerant into the suction muffler (130, 140); a suction pipe portion that is disposed inside the suction muffler body (131, 141) and that extends from the suction hole; a partition wall that is disposed at the suction muffler body (130, 140) and partitions the suction space into a first space and a second space, and a guide pipe that is disposed at the partition wall and defines a refrigerant passage in fluid communication with the first and second spaces (S1, S2), the guide pipe comprising: (i) a first pipe portion that extends from the partition wall to the first space, the first pipe portion having a first end for introducing the refrigerant suctioned from the suction hole and the suction pipe portion; and (ii) a second pipe portion that extends from the partition wall to the second space, characterized in that the first pipe portion comprises a resonance hole, and the second pipe portion has a second end for discharging the refrigerant passing through the guide pipe into the second space. a suction muffler body (131, 141) that defines a suction space configured to receive the refrigerant and a suction hole configured to receive the refrigerant into the suction muffler (130, 140); a suction pipe portion that is disposed inside the suction muffler body (131, 141) and that extends from the suction hole; a partition wall that is disposed at the suction muffler body (130, 140) and partitions the suction space into a first space and a second space, and a guide pipe that is disposed at the partition wall and defines a refrigerant passage in fluid communication with the first and second spaces (S1, S2), the guide pipe comprising: (i) a first pipe portion that extends from the partition wall to the first space, the first pipe portion having a first end for introducing the refrigerant suctioned from the suction hole and the suction pipe portion; and (ii) a second pipe portion that extends from the partition wall to the second space, (i) a first pipe portion that extends from the partition wall to the first space, the first pipe portion having a first end for introducing the refrigerant suctioned from the suction hole and the suction pipe portion; and (ii) a second pipe portion that extends from the partition wall to the second space, characterized in that the first pipe portion comprises a resonance hole, and the second pipe portion has a second end for discharging the refrigerant passing through the guide pipe into the second space.